Factors of 1329

The factors of 1329 are 1, 3, 443, 1329. It has 4 factors.

Factors of 1329

Pick any whole number from 1 to 10,000.

1329 = 3 \times 443

How to work it out

1
A factor of 1329 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1329 ≈ 36.46; 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.
$1329 = 3 \times 443$
4
Add all the factors: 1 + 3 + 443 + 1329 = 1776. Without 1329 itself that is 447, so 1329 is a deficient number.

LaTeX source of the formulas on this page

\[ 1329 = 3 \times 443 \]

Factor	Pairs with	Product
1	1329	1 × 1329 = 1329
3	443	3 × 443 = 1329

What are the factors of 1329?

The factors of 1329 are 1, 3, 443, 1329. It has 4 factors.

What are the prime factors of 1329?

3, 443. As a product: 3 × 443.

How many factors does 1329 have?

1329 has 4 factors (2 factor pairs).

What is the sum of the factors of 1329?

1776.

Is 1329 a prime number?

No. It is divisible by 3, so 1329 = 3 × 443.