Factors of 1604

2, 401. As a product: 2^2 × 401.

The factors of 1604 are 1, 2, 4, 401, 802, 1604. It has 6 factors.

Factors of 1604

Pick any whole number from 1 to 10,000.

1604 = 2^{2} \times 401

How to work it out

1
A factor of 1604 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1604 ≈ 40.05; 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.
$1604 = 2^{2} \times 401$
4
Add all the factors: 1 + 2 + 4 + 401 + 802 + 1604 = 2814. Without 1604 itself that is 1210, so 1604 is a deficient number.

LaTeX source of the formulas on this page

\[ 1604 = 2^{2} \times 401 \]

What are the factors of 1604?

The factors of 1604 are 1, 2, 4, 401, 802, 1604. It has 6 factors.

What are the prime factors of 1604?

2, 401. As a product: $2^{2}$ × 401.

How many factors does 1604 have?

1604 has 6 factors (3 factor pairs).

What is the sum of the factors of 1604?

2814.

Is 1604 a prime number?

No. It is divisible by 2, so 1604 = 2 × 802.