Factors of 676

2, 13. As a product: 2^2 × 13^2.

The factors of 676 are 1, 2, 4, 13, 26, 52, 169, 338, 676. It has 9 factors.

Factors of 676

Pick any whole number from 1 to 10,000.

676 = 2^{2} \times 13^{2}

How to work it out

1
A factor of 676 is a whole number that divides it with nothing left over. You only need to test the numbers up to √676 ≈ 26.00; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 9 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$676 = 2^{2} \times 13^{2}$
4
Add all the factors: 1 + 2 + 4 + 13 + 26 + 52 + 169 + 338 + 676 = 1281. Without 676 itself that is 605, so 676 is a deficient number.

LaTeX source of the formulas on this page

\[ 676 = 2^{2} \times 13^{2} \]

What are the factors of 676?

The factors of 676 are 1, 2, 4, 13, 26, 52, 169, 338, 676. It has 9 factors.

What are the prime factors of 676?

2, 13. As a product: $2^{2}$ × $13^{2}$ .

How many factors does 676 have?

676 has 9 factors (5 factor pairs, one of them 26 × 26).

What is the sum of the factors of 676?

1281.

Is 676 a prime number?

No. It is divisible by 2, so 676 = 2 × 338.