Factors of 388

2, 97. As a product: 2^2 × 97.

The factors of 388 are 1, 2, 4, 97, 194, 388. It has 6 factors.

Factors of 388

Pick any whole number from 1 to 10,000.

388 = 2^{2} \times 97

How to work it out

1
A factor of 388 is a whole number that divides it with nothing left over. You only need to test the numbers up to √388 ≈ 19.70; 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.
$388 = 2^{2} \times 97$
4
Add all the factors: 1 + 2 + 4 + 97 + 194 + 388 = 686. Without 388 itself that is 298, so 388 is a deficient number.

LaTeX source of the formulas on this page

\[ 388 = 2^{2} \times 97 \]

What are the factors of 388?

The factors of 388 are 1, 2, 4, 97, 194, 388. It has 6 factors.

What are the prime factors of 388?

2, 97. As a product: $2^{2}$ × 97.

How many factors does 388 have?

388 has 6 factors (3 factor pairs).

What is the sum of the factors of 388?

686.

Is 388 a prime number?

No. It is divisible by 2, so 388 = 2 × 194.