Factors of 790
The factors of 790 are 1, 2, 5, 10, 79, 158, 395, 790. It has 8 factors.
Factors of 790
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 790 is a whole number that divides it with nothing left over. You only need to test the numbers up to √790 ≈ 28.11; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 8 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: 1 + 2 + 5 + 10 + 79 + 158 + 395 + 790 = 1440. Without 790 itself that is 650, so 790 is a deficient number.
LaTeX source of the formulas on this page
\[ 790 = 2 \times 5 \times 79 \]
Factor pairs of 790
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 790 | 1 × 790 = 790 |
| 2 | 395 | 2 × 395 = 790 |
| 5 | 158 | 5 × 158 = 790 |
| 10 | 79 | 10 × 79 = 790 |
Questions
What are the factors of 790?
The factors of 790 are 1, 2, 5, 10, 79, 158, 395, 790. It has 8 factors.
What are the prime factors of 790?
2, 5, 79. As a product: 2 × 5 × 79.
How many factors does 790 have?
790 has 8 factors (4 factor pairs).
What is the sum of the factors of 790?
1440.
Is 790 a prime number?
No. It is divisible by 2, so 790 = 2 × 395.