Factors of 8990
The factors of 8990 are 1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990. It has 16 factors.
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 8990 is a whole number that divides it with nothing left over. You only need to test the numbers up to √8990 ≈ 94.82; 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 17280. Without 8990 itself that is 8290, so 8990 is a deficient number.
LaTeX source of the formulas on this page
\[ 8990 = 2 \times 5 \times 29 \times 31 \]
Factor pairs of 8990
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 8990 | 1 × 8990 = 8990 |
| 2 | 4495 | 2 × 4495 = 8990 |
| 5 | 1798 | 5 × 1798 = 8990 |
| 10 | 899 | 10 × 899 = 8990 |
| 29 | 310 | 29 × 310 = 8990 |
| 31 | 290 | 31 × 290 = 8990 |
| 58 | 155 | 58 × 155 = 8990 |
| 62 | 145 | 62 × 145 = 8990 |
Questions
What are the factors of 8990?
The factors of 8990 are 1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990. It has 16 factors.
What are the prime factors of 8990?
2, 5, 29, 31. As a product: 2 × 5 × 29 × 31.
How many factors does 8990 have?
8990 has 16 factors (8 factor pairs).
What is the sum of the factors of 8990?
17280.
Is 8990 a prime number?
No. It is divisible by 2, so 8990 = 2 × 4495.