Factors of 172

2, 43. As a product: 2^2 × 43.

The factors of 172 are 1, 2, 4, 43, 86, 172. It has 6 factors.

Factors of 172

Pick any whole number from 1 to 10,000.

172 = 2^{2} \times 43

How to work it out

1
A factor of 172 is a whole number that divides it with nothing left over. You only need to test the numbers up to √172 ≈ 13.11; 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.
$172 = 2^{2} \times 43$
4
Add all the factors: 1 + 2 + 4 + 43 + 86 + 172 = 308. Without 172 itself that is 136, so 172 is a deficient number.

LaTeX source of the formulas on this page

\[ 172 = 2^{2} \times 43 \]

What are the factors of 172?

The factors of 172 are 1, 2, 4, 43, 86, 172. It has 6 factors.

What are the prime factors of 172?

2, 43. As a product: $2^{2}$ × 43.

How many factors does 172 have?

172 has 6 factors (3 factor pairs).

What is the sum of the factors of 172?

308.

Is 172 a prime number?

No. It is divisible by 2, so 172 = 2 × 86.