Factors of 549

3, 61. As a product: 3^2 × 61.

The factors of 549 are 1, 3, 9, 61, 183, 549. It has 6 factors.

Factors of 549

Pick any whole number from 1 to 10,000.

549 = 3^{2} \times 61

How to work it out

1
A factor of 549 is a whole number that divides it with nothing left over. You only need to test the numbers up to √549 ≈ 23.43; 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.
$549 = 3^{2} \times 61$
4
Add all the factors: 1 + 3 + 9 + 61 + 183 + 549 = 806. Without 549 itself that is 257, so 549 is a deficient number.

LaTeX source of the formulas on this page

\[ 549 = 3^{2} \times 61 \]

What are the factors of 549?

The factors of 549 are 1, 3, 9, 61, 183, 549. It has 6 factors.

What are the prime factors of 549?

3, 61. As a product: $3^{2}$ × 61.

How many factors does 549 have?

549 has 6 factors (3 factor pairs).

What is the sum of the factors of 549?

806.

Is 549 a prime number?

No. It is divisible by 3, so 549 = 3 × 183.