Factors of 328

2, 41. As a product: 2^3 × 41.

The factors of 328 are 1, 2, 4, 8, 41, 82, 164, 328. It has 8 factors.

Factors of 328

Pick any whole number from 1 to 10,000.

328 = 2^{3} \times 41

How to work it out

1
A factor of 328 is a whole number that divides it with nothing left over. You only need to test the numbers up to √328 ≈ 18.11; 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.
$328 = 2^{3} \times 41$
4
Add all the factors: 1 + 2 + 4 + 8 + 41 + 82 + 164 + 328 = 630. Without 328 itself that is 302, so 328 is a deficient number.

LaTeX source of the formulas on this page

\[ 328 = 2^{3} \times 41 \]

What are the factors of 328?

The factors of 328 are 1, 2, 4, 8, 41, 82, 164, 328. It has 8 factors.

What are the prime factors of 328?

2, 41. As a product: $2^{3}$ × 41.

How many factors does 328 have?

328 has 8 factors (4 factor pairs).

What is the sum of the factors of 328?

630.

Is 328 a prime number?

No. It is divisible by 2, so 328 = 2 × 164.