Factors of 931

7, 19. As a product: 7^2 × 19.

The factors of 931 are 1, 7, 19, 49, 133, 931. It has 6 factors.

Factors of 931

Pick any whole number from 1 to 10,000.

931 = 7^{2} \times 19

How to work it out

1
A factor of 931 is a whole number that divides it with nothing left over. You only need to test the numbers up to √931 ≈ 30.51; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 6 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$931 = 7^{2} \times 19$
4
Add all the factors: 1 + 7 + 19 + 49 + 133 + 931 = 1140. Without 931 itself that is 209, so 931 is a deficient number.

LaTeX source of the formulas on this page

\[ 931 = 7^{2} \times 19 \]

What are the factors of 931?

The factors of 931 are 1, 7, 19, 49, 133, 931. It has 6 factors.

What are the prime factors of 931?

7, 19. As a product: $7^{2}$ × 19.

How many factors does 931 have?

931 has 6 factors (3 factor pairs).

What is the sum of the factors of 931?

1140.

Is 931 a prime number?

No. It is divisible by 7, so 931 = 7 × 133.