Factors of 3987

3, 443. As a product: 3^2 × 443.

The factors of 3987 are 1, 3, 9, 443, 1329, 3987. It has 6 factors.

Factors of 3987

Pick any whole number from 1 to 10,000.

3987 = 3^{2} \times 443

How to work it out

1
A factor of 3987 is a whole number that divides it with nothing left over. You only need to test the numbers up to √3987 ≈ 63.14; 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.
$3987 = 3^{2} \times 443$
4
Add all the factors: 1 + 3 + 9 + 443 + 1329 + 3987 = 5772. Without 3987 itself that is 1785, so 3987 is a deficient number.

LaTeX source of the formulas on this page

\[ 3987 = 3^{2} \times 443 \]

What are the factors of 3987?

The factors of 3987 are 1, 3, 9, 443, 1329, 3987. It has 6 factors.

What are the prime factors of 3987?

3, 443. As a product: $3^{2}$ × 443.

How many factors does 3987 have?

3987 has 6 factors (3 factor pairs).

What is the sum of the factors of 3987?

5772.

Is 3987 a prime number?

No. It is divisible by 3, so 3987 = 3 × 1329.