Factors of 1573

11, 13. As a product: 11^2 × 13.

The factors of 1573 are 1, 11, 13, 121, 143, 1573. It has 6 factors.

Factors of 1573

Pick any whole number from 1 to 10,000.

1573 = 11^{2} \times 13

How to work it out

1
A factor of 1573 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1573 ≈ 39.66; 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.
$1573 = 11^{2} \times 13$
4
Add all the factors: 1 + 11 + 13 + 121 + 143 + 1573 = 1862. Without 1573 itself that is 289, so 1573 is a deficient number.

LaTeX source of the formulas on this page

\[ 1573 = 11^{2} \times 13 \]

What are the factors of 1573?

The factors of 1573 are 1, 11, 13, 121, 143, 1573. It has 6 factors.

What are the prime factors of 1573?

11, 13. As a product: $11^{2}$ × 13.

How many factors does 1573 have?

1573 has 6 factors (3 factor pairs).

What is the sum of the factors of 1573?

1862.

Is 1573 a prime number?

No. It is divisible by 11, so 1573 = 11 × 143.