Pick six numbers from 1 to 45. The jackpot odds are 1 in 8,145,060 — not an estimate, but a figure the combination formula gives exactly.
You choose six distinct numbers between 1 and 45. The draw pulls six balls, then one additional bonus ball. The bonus ball matters for the second tier only.
The order you pick in is irrelevant. Choosing 1-2-3-4-5-6 has exactly the same chance as any scattered set, because every combination is a single equally likely outcome.
| Item | Detail |
|---|---|
| Number pool | 6 from 1–45 |
| Bonus ball | 1 (second tier only) |
| Draw | Every Saturday evening |
| Price per line | KRW 1,000 |
| Total combinations | 8,145,060 |
The total number of outcomes is the count of ways to choose 6 from 45 without regard to order: C(45,6) = 8,145,060. Each tier's probability is the number of combinations that qualify for it, divided by that total.
| Tier | Requirement | Qualifying combinations | Odds |
|---|---|---|---|
| 1st | All 6 numbers | 1 | 1 in 8,145,060 |
| 2nd | 5 numbers + bonus | 6 | 1 in 1,357,510 |
| 3rd | 5 numbers (no bonus) | 228 | 1 in 35,724 |
| 4th | 4 numbers | 11,115 | about 1 in 733 |
| 5th | 3 numbers | 182,780 | about 1 in 45 |
C(6,5) = 6 ways, and your sixth number must be the bonus ball. For third place the sixth number has to be one of the 38 numbers that were neither drawn nor the bonus, giving 6 × 38 = 228.The top four tiers are not fixed amounts. A share of each draw's total sales is allocated to each tier and then split among however many people won it. Two jackpot winners means roughly half as much each.
Only the fifth tier is fixed, at KRW 5,000 — five times the price of a line.
This is why picking patterns matters, though not in the way people usually assume. Choosing numbers other people avoid does not raise your chance of winning; it lowers the number of people you would share with if you did.
Winnings are treated as other income and withheld at source. Under article 84 of Korea's Income Tax Act, a prize of KRW 2,000,000 or less per ticket is not taxed. Above that, 22% applies up to KRW 300 million (20% income tax plus 2% local tax) and 33% applies to the portion above KRW 300 million.
Because the tax is withheld at payout, there is no separate annual filing to make. Prizes must be claimed within one year of the payout start date; after that the claim lapses.
The odds are identical either way — 1 in 8,145,060 for any single combination. The one real difference is that human choices cluster on popular patterns, so a hand-picked set is somewhat more likely to be shared with other winners.
Yes. Every draw is independent of every previous draw, and a combination that has already appeared is no less likely to appear again.
No. At KRW 5,000 it falls far below the KRW 2,000,000 threshold at which tax begins.
Rules, odds, and tax treatment differ from game to game. Reading two of these side by side is the fastest way to see how much.