Factors of 845

5, 13. As a product: 5 × 13^2.

The factors of 845 are 1, 5, 13, 65, 169, 845. It has 6 factors.

Factors of 845

Pick any whole number from 1 to 10,000.

845 = 5 \times 13^{2}

How to work it out

1
A factor of 845 is a whole number that divides it with nothing left over. You only need to test the numbers up to √845 ≈ 29.07; 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.
$845 = 5 \times 13^{2}$
4
Add all the factors: 1 + 5 + 13 + 65 + 169 + 845 = 1098. Without 845 itself that is 253, so 845 is a deficient number.

LaTeX source of the formulas on this page

\[ 845 = 5 \times 13^{2} \]

What are the factors of 845?

The factors of 845 are 1, 5, 13, 65, 169, 845. It has 6 factors.

What are the prime factors of 845?

5, 13. As a product: 5 × $13^{2}$ .

How many factors does 845 have?

845 has 6 factors (3 factor pairs).

What is the sum of the factors of 845?

1098.

Is 845 a prime number?

No. It is divisible by 5, so 845 = 5 × 169.