Factors of 1563

The factors of 1563 are 1, 3, 521, 1563. It has 4 factors.

Factors of 1563

Pick any whole number from 1 to 10,000.

1563 = 3 \times 521

How to work it out

1
A factor of 1563 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1563 ≈ 39.53; 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.
$1563 = 3 \times 521$
4
Add all the factors: 1 + 3 + 521 + 1563 = 2088. Without 1563 itself that is 525, so 1563 is a deficient number.

LaTeX source of the formulas on this page

\[ 1563 = 3 \times 521 \]

Factor	Pairs with	Product
1	1563	1 × 1563 = 1563
3	521	3 × 521 = 1563

What are the factors of 1563?

The factors of 1563 are 1, 3, 521, 1563. It has 4 factors.

What are the prime factors of 1563?

3, 521. As a product: 3 × 521.

How many factors does 1563 have?

1563 has 4 factors (2 factor pairs).

What is the sum of the factors of 1563?

2088.

Is 1563 a prime number?

No. It is divisible by 3, so 1563 = 3 × 521.