Factors of 8440
The factors of 8440 are 1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440. It has 16 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 8440 is a whole number that divides it with nothing left over. You only need to test the numbers up to √8440 ≈ 91.87; 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 19080. Without 8440 itself that is 10640, so 8440 is an abundant number.
LaTeX source of the formulas on this page
\[ 8440 = 2^{3} \times 5 \times 211 \]Factor pairs of 8440
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 8440 | 1 × 8440 = 8440 |
| 2 | 4220 | 2 × 4220 = 8440 |
| 4 | 2110 | 4 × 2110 = 8440 |
| 5 | 1688 | 5 × 1688 = 8440 |
| 8 | 1055 | 8 × 1055 = 8440 |
| 10 | 844 | 10 × 844 = 8440 |
| 20 | 422 | 20 × 422 = 8440 |
| 40 | 211 | 40 × 211 = 8440 |
Questions
What are the factors of 8440?
The factors of 8440 are 1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 4220, 8440. It has 16 factors.
What are the prime factors of 8440?
2, 5, 211. As a product: × 5 × 211.
How many factors does 8440 have?
8440 has 16 factors (8 factor pairs).
What is the sum of the factors of 8440?
19080.
Is 8440 a prime number?
No. It is divisible by 2, so 8440 = 2 × 4220.