Factors of 170
The factors of 170 are 1, 2, 5, 10, 17, 34, 85, 170. It has 8 factors.
Factors of 170
Pick any whole number from 1 to 10,000.
How to work it out
- 1
A factor of 170 is a whole number that divides it with nothing left over. You only need to test the numbers up to √170 ≈ 13.04; 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 + 17 + 34 + 85 + 170 = 324. Without 170 itself that is 154, so 170 is a deficient number.
LaTeX source of the formulas on this page
\[ 170 = 2 \times 5 \times 17 \]
Factor pairs of 170
| Factor | Pairs with | Product |
|---|---|---|
| 1 | 170 | 1 × 170 = 170 |
| 2 | 85 | 2 × 85 = 170 |
| 5 | 34 | 5 × 34 = 170 |
| 10 | 17 | 10 × 17 = 170 |
Questions
What are the factors of 170?
The factors of 170 are 1, 2, 5, 10, 17, 34, 85, 170. It has 8 factors.
What are the prime factors of 170?
2, 5, 17. As a product: 2 × 5 × 17.
How many factors does 170 have?
170 has 8 factors (4 factor pairs).
What is the sum of the factors of 170?
324.
Is 170 a prime number?
No. It is divisible by 2, so 170 = 2 × 85.