First 3 Digits vs Last 3 Digits Lottery Checking

This article was translated by AI from the Thai original. If anything is unclear, the Thai original is the reference.

Checking the first 3 digits and last 3 digits prizes requires looking at different positions and comparing them against different prize categories. For example, for ticket number `123456`, use `123` to check only against the first 3 digits prize, and use `456` to check only against the last 3 digits prize. You must never cross-check these between categories, even though the numbers used for checking both have three digits each.

The key principle is "different position, different category, never cross-check." In addition, the number must match completely across all three digits, in the same order as the announced result, and leading zeros must always be kept. This article explains how the digits on a six-digit ticket are divided, along with examples of correct and incorrect checking, so you can check your own ticket without confusion.

How Are the First 3 Digits and Last 3 Digits Different

The first 3 digits and last 3 digits are different types of prizes within the six-digit government lottery. The clearest difference is the position of the numbers on the ticket.

The first 3 digits prize uses the first three digits, or positions 1-3 counting from the left. The last 3 digits prize uses the last three digits, or positions 4-6. Therefore, a single ticket clearly has two separate sets of numbers to check.

Comparison Point	First 3 Digits	Last 3 Digits
Position on the ticket	First 3 digits	Last 3 digits
Example from `123456`	`123`	`456`
Prize category used for comparison	First 3 digits	Last 3 digits
Number of announced numbers in the category	2 numbers	2 numbers
Prize rate	4,000 baht per prize	4,000 baht per prize

Even though the prize rate and the number of announced numbers are the same for both categories, this does not mean the same set of numbers can be checked against both categories. Reading the first-3-digits and last-3-digits lottery results correctly requires looking at both the "set of numbers" and the "prize category name" at the same time.

For example, with the number `123456`, if `123` is found in the last 3 digits category, it still cannot be concluded that it won the last 3 digits prize, because `123` is the number from the front of this ticket. Likewise, if `456` is found in the first 3 digits category, it is not considered a match for the first 3 digits prize.

How to split the 6-digit lottery number for checking prizes

The method for comparing the 6-digit lottery number starts by splitting the number into two sets of three digits each, read from left to right in the original order, without skipping digits or swapping positions.

The positions on the lottery ticket can be viewed as follows:

`[1][2][3] [4][5][6]`

The first three boxes are the part used to check the 3-digit front prize, while the last three boxes are the part used to check the 3-digit back prize.

> Ticket `123456` → `[123][456]`

> `123` = check against the 3-digit front number box

> `456` = check against the 3-digit back number box

All the numbers in the example are fictitious numbers used only to explain the checking method, not actual prize results.

Which position gives the 3-digit front number

If you're wondering what the 3-digit front number is, start reading from the leftmost digit and use the first three consecutive digits.

For the ticket `123456`, the first three digits are `1`, `2` and `3`. Joined together, they form `123`. This set must be compared only against the number announced in the "3-digit front number" box.

You should not pick digits from other positions and combine them, such as choosing the 1st, 3rd and 5th digits, because this prize is determined from the first three digits according to their actual position on the ticket.

Which position gives the 3-digit back number

The 3-digit back number is the last three digits of the lottery number, or the three positions on the right.

From the example `123456`, the back number is `456`, so `456` must be checked against the "3-digit back number" box — not any three digits chosen arbitrarily from the six digits, and not the first three digits used in its place.

Once split into `[123][456]`, keep the original order of each set throughout the checking process, because arranging the digits differently is considered a different number.

How to check the front 3-digit and last 3-digit numbers step by step

Checking the 3-digit lottery numbers accurately, in terms of reading the results, does not require a complicated method. Simply check in order and do not jump to conclusions from seeing similar-looking numbers.

Step 1: Copy down the lottery ticket number completely

Read all six digits on the ticket first. If checking several tickets, check them one at a time to reduce the chance of matching the front digits of one ticket with the last digits of another.

Then split the number into two sets based on the image pattern `[123][456]`, namely:

The left set is the first three digits
The right set is the last three digits
Do not swap the order within each set
Do not drop any leading zeros

Before comparing, re-read the number on the ticket once more to prevent copying errors, especially for digits that are adjacent to each other or that repeat in several positions.

Step 2: Match it exactly with the prize category name

Take the left set and compare it only against the front 3-digit number box, and take the right set and compare it only against the last 3-digit number box. Each category has 2 announced numbers, so read both numbers completely before concluding the result.

The key condition is that the number must match all three digits in the same order. For example, `123` is not the same number as `132`, even though both consist of the digits 1, 2 and 3.

Finding matching digits that appear in a different category is also not considered a match for that prize. The front numbers and the last numbers each have their own specific function, so they cannot be checked across boxes.

Step 3: Check the draw date and confirm the result once more

Before concluding whether a number matches or not, check the draw date on the ticket against the draw currently being viewed. If tickets from different draws are compared, even if the numbers are the same, it is not the result for that ticket.

After the initial comparison, confirm again with the official prize-checking system or prize-checking sheet of the Government Lottery Office, checking the number, the prize category and the draw date completely. Comparing against the examples in this article alone is not a certification of eligibility to receive a prize.

Examples of correct and incorrect checking

Suppose you hold ticket number `123456`. When split, it becomes `[123][456]`. Note that this set of numbers is only an example, not the result of any particular draw.

Correct checking cases are as follows:

If the front 3-digit prize is announced as `123`, this sample ticket matches the front 3-digit prize.
If the last 3-digit prize is announced as `456`, this sample ticket matches the last 3-digit prize.

As for cases where the numbers look matching but are checked against the wrong position:

If the front 3-digit prize is announced as `456`, this ticket does not match the front prize, because `456` is in the last three digits.
If the last 3-digit prize is announced as `123`, this ticket does not match the last prize, because `123` is in the first three digits.
If the result is announced as `132` or `321`, it will not match `123` because the order of the digits is different.
If only some digits are found to match, that is still not enough — all three digits must match completely.

Common mistakes are therefore not just about misreading the numbers, but also about overlooking the prize category name. The simplest way to prevent this is to say out loud while checking: "the first three digits check the front number, the last three digits check the last number."

How to check if there is a leading 0

A leading zero is part of the number and must not be dropped. For example, `041` must be read and checked as the three-digit number `041`, not written as `41`.

The numbers `041`, `410` and `401` are different numbers because the digits sit in different positions, even though all three sets share the digits 0, 4 and 1.

Examples of leading-zero positions:

Lottery ticket `041789` splits into `[041][789]`; the front 3 digits are `041`
Lottery ticket `782041` splits into `[782][041]`; the back 3 digits are `041`

When entering a number into a results-checking field, check whether the system still displays all three full digits. If writing it down on paper or sending it to someone else to check, write `041` in full form so it is not mistaken for a two-digit number.

Can a single ticket win both the front and back 3-digit prizes at the same time

If the front three digits match the result in the front 3 digits category and the back three digits match the result in the back 3 digits category, that ticket may qualify for both prize types in the same draw, since this involves checking different positions under different categories.

However, do not conclude a total prize amount from your own calculation without first checking the latest conditions. Always confirm the results, eligibility and prize-claiming details with the Government Lottery Office beforehand, especially in cases where a single ticket appears to match more than one prize category.

Do not confuse this with three-digit number lottery tickets

This article explains only the front 3 digits and back 3 digits of the six-digit government lottery, not the "three straight", "three any order", or "two straight" prize checks of three-digit number lottery tickets.

Even though some category names also mention three-digit numbers, the checking method, prize names and conditions belong to a different system, so prize results from one product should not be cross-checked against another product.

Before checking each time, look at what type of ticket you are holding and whether the results page you are reading matches the same ticket type. If you are holding a six-digit ticket, look for the fields clearly labeled "front 3 digits" and "back 3 digits".

Checklist before concluding you've won a prize

Review this list before concluding the result:

Were all 6 digits on the ticket read completely?
Does the draw date on the ticket match the result you are checking?
Is the number correctly split into the first 3 digits and the last 3 digits?
Have the first three digits been compared against the 3-digit front number prize slot?
Have the last three digits been compared against the 3-digit last number prize slot?
Do the digits match completely and in the same order?
Have leading zeros been kept in full?
Have both numbers announced in each category been checked in full?
Has the result been confirmed with the Government Lottery Office?

Frequently asked questions

What is the difference between the 3-digit front number and the 3-digit last number?

The 3-digit front number uses the first three digits of the six-digit ticket, while the 3-digit last number uses the last three digits. These are two different prize categories, so each must be compared against its own prize slot and must not be checked across categories.

For ticket number 123456, which digits should be used to check each prize?

Split it as `[123][456]`, then use `123` to check the 3-digit front number prize and `456` to check the 3-digit last number prize. This number is only a hypothetical example, not an actual prize result.

Can the three digits be in a different order and still count?

No. The number must match completely across all three digits and in the same order as the announced result. For example, `123` is not equal to `132` or `321`, even though they use the same set of digits.

If the prize result has a leading zero, how should it be checked?

All three digits must be kept in full. For example, `041` should be checked as `041` — do not drop the zero and read it as just `41`, as this would make the number incomplete and could lead to an incorrect check.

How much prize money do the 3-digit front number and 3-digit last number pay?

The Government Lottery Office lists a prize rate of 4,000 baht for each of the 3-digit front number and 3-digit last number prizes. Although the prize rate is the same, they are different prize categories and use digits from different positions for checking. You should verify current information and confirm eligibility before proceeding to claim a prize.

If the front number matches the last number result, does that count as a win?

No, it does not count as matching the last number prize, because the first three digits must only be checked against the 3-digit front number slot. For example, for ticket `123456`, even if the last number slot announces `123`, it does not match this ticket's last number, which is `456`.

Summary

The correct way to check the first 3-digit and last 3-digit numbers is to split the six-digit lottery number into `[first three digits][last three digits]`, then compare each set against the matching prize category.

Remember it simply: the first three digits check the front-number category, and the last three digits check the back-number category. They must match completely, in the same order, and in the same category. If there is a leading 0, keep it in full. Never swap the digits, never cross-check between categories, and don't forget to check the draw date, and always confirm the result with the Government Lottery Office before finalizing any outcome.

Checking the Lottery: What's the Difference Between the First 3 Digits and Last 3 Digits?