Factors of 2991

The factors of 2991 are 1, 3, 997, 2991. It has 4 factors.

Factors of 2991

Pick any whole number from 1 to 10,000.

2991 = 3 \times 997

How to work it out

1
A factor of 2991 is a whole number that divides it with nothing left over. You only need to test the numbers up to √2991 ≈ 54.69; every one that divides gives a pair.
2
The factor pairs are listed in the table below. Together they give 4 factors.
3
Prime factorisation: keep dividing by the smallest prime that fits.
$2991 = 3 \times 997$
4
Add all the factors: 1 + 3 + 997 + 2991 = 3992. Without 2991 itself that is 1001, so 2991 is a deficient number.

LaTeX source of the formulas on this page

\[ 2991 = 3 \times 997 \]

Factor	Pairs with	Product
1	2991	1 × 2991 = 2991
3	997	3 × 997 = 2991

What are the factors of 2991?

The factors of 2991 are 1, 3, 997, 2991. It has 4 factors.

What are the prime factors of 2991?

3, 997. As a product: 3 × 997.

How many factors does 2991 have?

2991 has 4 factors (2 factor pairs).

What is the sum of the factors of 2991?

3992.

Is 2991 a prime number?

No. It is divisible by 3, so 2991 = 3 × 997.