Factors of 648

2, 3. As a product: 2^3 × 3^4.

The factors of 648 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648. It has 20 factors.

Factors of 648

Pick any whole number from 1 to 10,000.

648 = 2^{3} \times 3^{4}

How to work it out

1
A factor of 648 is a whole number that divides it with nothing left over. You only need to test the numbers up to √648 ≈ 25.46; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 20 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$648 = 2^{3} \times 3^{4}$
4
Add all the factors: the sum is 1815. Without 648 itself that is 1167, so 648 is an abundant number.

LaTeX source of the formulas on this page

\[ 648 = 2^{3} \times 3^{4} \]

What are the factors of 648?

The factors of 648 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648. It has 20 factors.

What are the prime factors of 648?

2, 3. As a product: $2^{3}$ × $3^{4}$ .

How many factors does 648 have?

648 has 20 factors (10 factor pairs).

What is the sum of the factors of 648?

1815.

Is 648 a prime number?

No. It is divisible by 2, so 648 = 2 × 324.