Factors of 1629

3, 181. As a product: 3^2 × 181.

The factors of 1629 are 1, 3, 9, 181, 543, 1629. It has 6 factors.

Factors of 1629

Pick any whole number from 1 to 10,000.

1629 = 3^{2} \times 181

How to work it out

1
A factor of 1629 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1629 ≈ 40.36; 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.
$1629 = 3^{2} \times 181$
4
Add all the factors: 1 + 3 + 9 + 181 + 543 + 1629 = 2366. Without 1629 itself that is 737, so 1629 is a deficient number.

LaTeX source of the formulas on this page

\[ 1629 = 3^{2} \times 181 \]

What are the factors of 1629?

The factors of 1629 are 1, 3, 9, 181, 543, 1629. It has 6 factors.

What are the prime factors of 1629?

3, 181. As a product: $3^{2}$ × 181.

How many factors does 1629 have?

1629 has 6 factors (3 factor pairs).

What is the sum of the factors of 1629?

2366.

Is 1629 a prime number?

No. It is divisible by 3, so 1629 = 3 × 543.