What Is Number Sum?
In Korean Lotto 6/45, the "number sum" is the total of the 6 drawn numbers added together. Theoretically, the minimum sum is 21 (1+2+3+4+5+6) and the maximum is 255 (40+41+42+43+44+45).
Real Data Analysis
From 1,200+ Korean Lotto 6/45 draws, the distribution of number sums:
| Sum Range | Appearance Rate |
|---|---|
| 21-80 | ~5% |
| 81-120 | ~25% |
| 121-160 | ~42% |
| 161-200 | ~23% |
| 201-255 | ~5% |
Key Findings
1. The 121-160 range is the most frequent – about 42% of all draws fall in this range.
2. Average sum: approximately 138 (theoretical expected value: 138).
3. Over 80% of sums fall between 81 and 200.
Relationship to Normal Distribution
The sum of 6 numbers approximates a Normal Distribution. The theoretical mean is 138, with a standard deviation of approximately 32. Therefore, most sums fall within the 106-170 range (mean ± 1 standard deviation).
How to Apply
- After selecting your numbers, check their sum.
- A sum between 100-175 aligns with historical winning data.
- Extreme sums (below 50 or above 220) are very rare.
- You can verify your sum using BALLPICK's Number Generator.
This analysis is for reference only and does not guarantee winnings.