Factors of 531

3, 59. As a product: 3^2 × 59.

The factors of 531 are 1, 3, 9, 59, 177, 531. It has 6 factors.

Factors of 531

Pick any whole number from 1 to 10,000.

531 = 3^{2} \times 59

How to work it out

1
A factor of 531 is a whole number that divides it with nothing left over. You only need to test the numbers up to √531 ≈ 23.04; 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.
$531 = 3^{2} \times 59$
4
Add all the factors: 1 + 3 + 9 + 59 + 177 + 531 = 780. Without 531 itself that is 249, so 531 is a deficient number.

LaTeX source of the formulas on this page

\[ 531 = 3^{2} \times 59 \]

What are the factors of 531?

The factors of 531 are 1, 3, 9, 59, 177, 531. It has 6 factors.

What are the prime factors of 531?

3, 59. As a product: $3^{2}$ × 59.

How many factors does 531 have?

531 has 6 factors (3 factor pairs).

What is the sum of the factors of 531?

780.

Is 531 a prime number?

No. It is divisible by 3, so 531 = 3 × 177.