Factors of 2421

3, 269. As a product: 3^2 × 269.

The factors of 2421 are 1, 3, 9, 269, 807, 2421. It has 6 factors.

Factors of 2421

Pick any whole number from 1 to 10,000.

2421 = 3^{2} \times 269

How to work it out

1
A factor of 2421 is a whole number that divides it with nothing left over. You only need to test the numbers up to √2421 ≈ 49.20; 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.
$2421 = 3^{2} \times 269$
4
Add all the factors: 1 + 3 + 9 + 269 + 807 + 2421 = 3510. Without 2421 itself that is 1089, so 2421 is a deficient number.

LaTeX source of the formulas on this page

\[ 2421 = 3^{2} \times 269 \]

What are the factors of 2421?

The factors of 2421 are 1, 3, 9, 269, 807, 2421. It has 6 factors.

What are the prime factors of 2421?

3, 269. As a product: $3^{2}$ × 269.

How many factors does 2421 have?

2421 has 6 factors (3 factor pairs).

What is the sum of the factors of 2421?

3510.

Is 2421 a prime number?

No. It is divisible by 3, so 2421 = 3 × 807.