Factors of 920
The factors of 920 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920. It has 16 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 920 is a whole number that divides it with nothing left over. You only need to test the numbers up to √920 ≈ 30.33; every one that divides gives a pair.
- 2
The factor pairs are listed in the table below. Together they give 16 factors.
- 3
Prime factorisation: keep dividing by the smallest prime that fits.
- 4
Add all the factors: the sum is 2160. Without 920 itself that is 1240, so 920 is an abundant number.
LaTeX source of the formulas on this page
\[ 920 = 2^{3} \times 5 \times 23 \]Factor pairs of 920
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 920 | 1 × 920 = 920 |
| 2 | 460 | 2 × 460 = 920 |
| 4 | 230 | 4 × 230 = 920 |
| 5 | 184 | 5 × 184 = 920 |
| 8 | 115 | 8 × 115 = 920 |
| 10 | 92 | 10 × 92 = 920 |
| 20 | 46 | 20 × 46 = 920 |
| 23 | 40 | 23 × 40 = 920 |
Questions
What are the factors of 920?
The factors of 920 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920. It has 16 factors.
What are the prime factors of 920?
2, 5, 23. As a product: × 5 × 23.
How many factors does 920 have?
920 has 16 factors (8 factor pairs).
What is the sum of the factors of 920?
2160.
Is 920 a prime number?
No. It is divisible by 2, so 920 = 2 × 460.