Factors of 351

3, 13. As a product: 3^3 × 13.

The factors of 351 are 1, 3, 9, 13, 27, 39, 117, 351. It has 8 factors.

Factors of 351

Pick any whole number from 1 to 10,000.

351 = 3^{3} \times 13

How to work it out

1
A factor of 351 is a whole number that divides it with nothing left over. You only need to test the numbers up to √351 ≈ 18.73; 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.
$351 = 3^{3} \times 13$
4
Add all the factors: 1 + 3 + 9 + 13 + 27 + 39 + 117 + 351 = 560. Without 351 itself that is 209, so 351 is a deficient number.

LaTeX source of the formulas on this page

\[ 351 = 3^{3} \times 13 \]

What are the factors of 351?

The factors of 351 are 1, 3, 9, 13, 27, 39, 117, 351. It has 8 factors.

What are the prime factors of 351?

3, 13. As a product: $3^{3}$ × 13.

How many factors does 351 have?

351 has 8 factors (4 factor pairs).

What is the sum of the factors of 351?

560.

Is 351 a prime number?

No. It is divisible by 3, so 351 = 3 × 117.