Factors of 1081

The factors of 1081 are 1, 23, 47, 1081. It has 4 factors.

Factors of 1081

Pick any whole number from 1 to 10,000.

1081 = 23 \times 47

How to work it out

1
A factor of 1081 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1081 ≈ 32.88; 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.
$1081 = 23 \times 47$
4
Add all the factors: 1 + 23 + 47 + 1081 = 1152. Without 1081 itself that is 71, so 1081 is a deficient number.

LaTeX source of the formulas on this page

\[ 1081 = 23 \times 47 \]

Factor	Pairs with	Product
1	1081	1 × 1081 = 1081
23	47	23 × 47 = 1081

What are the factors of 1081?

The factors of 1081 are 1, 23, 47, 1081. It has 4 factors.

What are the prime factors of 1081?

23, 47. As a product: 23 × 47.

How many factors does 1081 have?

1081 has 4 factors (2 factor pairs).

What is the sum of the factors of 1081?

1152.

Is 1081 a prime number?

No. It is divisible by 23, so 1081 = 23 × 47.