Factors of 27

All factors of 27

Here are all 4 factors of 27, listed from smallest to largest.

Factor pairs of 27

These 2 pairs of whole numbers each multiply to give 27.

Prime factorization of 27

Dividing 27 by the smallest prime at each step gives its prime factorization:

The distinct prime factors of 27 are 3. To factorize any other number, use the prime factorization calculator.

Factor tree of 27

A factor tree shows the same prime factorization visually. Each composite branch splits until every endpoint is a prime number.

Properties of 27

What makes 27 interesting

• 27 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 2 different ways.
• 27 is a perfect cube: 3 × 3 × 3 = 27.
• 27 is a deficient number: its proper factors sum to 13, which is 14 less than 27 itself.
• 27 is a prime power: it is 3 raised to the power of 3. All of its factors are powers of 3.

How to find the factors of 27 yourself

Divide 27 by each whole number starting from 1. Whenever the division leaves no remainder, both the divisor and the quotient are factors. You only need to test up to √27 ≈ 5.20, because every factor above that pairs with one below it.

Reading both columns gives every factor: 1, 3, 9, 27. The factor calculator does this automatically for any number.