Factors of 671

The factors of 671 are 1, 11, 61, 671. It has 4 factors.

Factors of 671

Pick any whole number from 1 to 10,000.

671 = 11 \times 61

How to work it out

1
A factor of 671 is a whole number that divides it with nothing left over. You only need to test the numbers up to √671 ≈ 25.90; 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.
$671 = 11 \times 61$
4
Add all the factors: 1 + 11 + 61 + 671 = 744. Without 671 itself that is 73, so 671 is a deficient number.

LaTeX source of the formulas on this page

\[ 671 = 11 \times 61 \]

Factor	Pairs with	Product
1	671	1 × 671 = 671
11	61	11 × 61 = 671

What are the factors of 671?

The factors of 671 are 1, 11, 61, 671. It has 4 factors.

What are the prime factors of 671?

11, 61. As a product: 11 × 61.

How many factors does 671 have?

671 has 4 factors (2 factor pairs).

What is the sum of the factors of 671?

744.

Is 671 a prime number?

No. It is divisible by 11, so 671 = 11 × 61.