Factors of 1018

The factors of 1018 are 1, 2, 509, 1018. It has 4 factors.

Factors of 1018

Pick any whole number from 1 to 10,000.

1018 = 2 \times 509

How to work it out

1
A factor of 1018 is a whole number that divides it with nothing left over. You only need to test the numbers up to √1018 ≈ 31.91; 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.
$1018 = 2 \times 509$
4
Add all the factors: 1 + 2 + 509 + 1018 = 1530. Without 1018 itself that is 512, so 1018 is a deficient number.

LaTeX source of the formulas on this page

\[ 1018 = 2 \times 509 \]

Factor	Pairs with	Product
1	1018	1 × 1018 = 1018
2	509	2 × 509 = 1018

What are the factors of 1018?

The factors of 1018 are 1, 2, 509, 1018. It has 4 factors.

What are the prime factors of 1018?

2, 509. As a product: 2 × 509.

How many factors does 1018 have?

1018 has 4 factors (2 factor pairs).

What is the sum of the factors of 1018?

1530.

Is 1018 a prime number?

No. It is divisible by 2, so 1018 = 2 × 509.