Factors of 68

2, 17. As a product: 2^2 × 17.

The factors of 68 are 1, 2, 4, 17, 34, 68. It has 6 factors.

Factors of 68

Pick any whole number from 1 to 10,000.

68 = 2^{2} \times 17

How to work it out

1
A factor of 68 is a whole number that divides it with nothing left over. You only need to test the numbers up to √68 ≈ 8.25; 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.
$68 = 2^{2} \times 17$
4
Add all the factors: 1 + 2 + 4 + 17 + 34 + 68 = 126. Without 68 itself that is 58, so 68 is a deficient number.

LaTeX source of the formulas on this page

\[ 68 = 2^{2} \times 17 \]

What are the factors of 68?

The factors of 68 are 1, 2, 4, 17, 34, 68. It has 6 factors.

What are the prime factors of 68?

2, 17. As a product: $2^{2}$ × 17.

How many factors does 68 have?

68 has 6 factors (3 factor pairs).

What is the sum of the factors of 68?

126.

Is 68 a prime number?

No. It is divisible by 2, so 68 = 2 × 34.