Factors of 290
The factors of 290 are 1, 2, 5, 10, 29, 58, 145, 290. It has 8 factors.
Factors of 290
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 290 is a whole number that divides it with nothing left over. You only need to test the numbers up to √290 ≈ 17.03; 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 + 29 + 58 + 145 + 290 = 540. Without 290 itself that is 250, so 290 is a deficient number.
LaTeX source of the formulas on this page
\[ 290 = 2 \times 5 \times 29 \]
Factor pairs of 290
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 290 | 1 × 290 = 290 |
| 2 | 145 | 2 × 145 = 290 |
| 5 | 58 | 5 × 58 = 290 |
| 10 | 29 | 10 × 29 = 290 |
Questions
What are the factors of 290?
The factors of 290 are 1, 2, 5, 10, 29, 58, 145, 290. It has 8 factors.
What are the prime factors of 290?
2, 5, 29. As a product: 2 × 5 × 29.
How many factors does 290 have?
290 has 8 factors (4 factor pairs).
What is the sum of the factors of 290?
540.
Is 290 a prime number?
No. It is divisible by 2, so 290 = 2 × 145.