Factors of 124

2, 31. As a product: 2^2 × 31.

The factors of 124 are 1, 2, 4, 31, 62, 124. It has 6 factors.

Factors of 124

Pick any whole number from 1 to 10,000.

124 = 2^{2} \times 31

How to work it out

1
A factor of 124 is a whole number that divides it with nothing left over. You only need to test the numbers up to √124 ≈ 11.14; 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.
$124 = 2^{2} \times 31$
4
Add all the factors: 1 + 2 + 4 + 31 + 62 + 124 = 224. Without 124 itself that is 100, so 124 is a deficient number.

LaTeX source of the formulas on this page

\[ 124 = 2^{2} \times 31 \]

What are the factors of 124?

The factors of 124 are 1, 2, 4, 31, 62, 124. It has 6 factors.

What are the prime factors of 124?

2, 31. As a product: $2^{2}$ × 31.

How many factors does 124 have?

124 has 6 factors (3 factor pairs).

What is the sum of the factors of 124?

224.

Is 124 a prime number?

No. It is divisible by 2, so 124 = 2 × 62.