Factors of 689

The factors of 689 are 1, 13, 53, 689. It has 4 factors.

Factors of 689

Pick any whole number from 1 to 10,000.

689 = 13 \times 53

How to work it out

1
A factor of 689 is a whole number that divides it with nothing left over. You only need to test the numbers up to √689 ≈ 26.25; 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.
$689 = 13 \times 53$
4
Add all the factors: 1 + 13 + 53 + 689 = 756. Without 689 itself that is 67, so 689 is a deficient number.

LaTeX source of the formulas on this page

\[ 689 = 13 \times 53 \]

Factor	Pairs with	Product
1	689	1 × 689 = 689
13	53	13 × 53 = 689

What are the factors of 689?

The factors of 689 are 1, 13, 53, 689. It has 4 factors.

What are the prime factors of 689?

13, 53. As a product: 13 × 53.

How many factors does 689 have?

689 has 4 factors (2 factor pairs).

What is the sum of the factors of 689?

756.

Is 689 a prime number?

No. It is divisible by 13, so 689 = 13 × 53.