Factors of 1389

The factors of 1389 are 1, 3, 463, 1389. It has 4 factors.

Factors of 1389

Pick any whole number from 1 to 10,000.

1389 = 3 \times 463

How to work it out

1
A factor of 1389 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1389 ≈ 37.27; 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.
$1389 = 3 \times 463$
4
Add all the factors: 1 + 3 + 463 + 1389 = 1856. Without 1389 itself that is 467, so 1389 is a deficient number.

LaTeX source of the formulas on this page

\[ 1389 = 3 \times 463 \]

Factor	Pairs with	Product
1	1389	1 × 1389 = 1389
3	463	3 × 463 = 1389

What are the factors of 1389?

The factors of 1389 are 1, 3, 463, 1389. It has 4 factors.

What are the prime factors of 1389?

3, 463. As a product: 3 × 463.

How many factors does 1389 have?

1389 has 4 factors (2 factor pairs).

What is the sum of the factors of 1389?

1856.

Is 1389 a prime number?

No. It is divisible by 3, so 1389 = 3 × 463.