Factors of 39

The factors of 39 are 1, 3, 13, 39. It has 4 factors.

Factors of 39

Pick any whole number from 1 to 10,000.

39 = 3 \times 13

How to work it out

1
A factor of 39 is a whole number that divides it with nothing left over. You only need to test the numbers up to √39 ≈ 6.24; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 4 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$39 = 3 \times 13$
4
Add all the factors: 1 + 3 + 13 + 39 = 56. Without 39 itself that is 17, so 39 is a deficient number.

LaTeX source of the formulas on this page

\[ 39 = 3 \times 13 \]

Factor	Pairs with	Product
1	39	1 × 39 = 39
3	13	3 × 13 = 39

What are the factors of 39?

The factors of 39 are 1, 3, 13, 39. It has 4 factors.

What are the prime factors of 39?

3, 13. As a product: 3 × 13.

How many factors does 39 have?

39 has 4 factors (2 factor pairs).

What is the sum of the factors of 39?

56.

Is 39 a prime number?

No. It is divisible by 3, so 39 = 3 × 13.