Factor Calculator

Factors of 117

The factors of 117 are 1, 3, 9, 13, 39, and 117. In total, 117 has 6 factors. Its prime factorization is 3² × 13, and the sum of all its factors is 182.

All factors of 117

Here are all 6 factors of 117, listed from smallest to largest.

1391339117

Factor pairs of 117

These 3 pairs of whole numbers each multiply to give 117.

1 × 117 = 117
3 × 39 = 117
9 × 13 = 117

Prime factorization of 117

Dividing 117 by the smallest prime at each step gives its prime factorization:

117 ÷ 3 = 39
39 ÷ 3 = 13
13 ÷ 13 = 1
Result: 117 = 3 × 3 × 13 = 3² × 13

The distinct prime factors of 117 are 3, 13. To factorize any other number, use the prime factorization calculator.

Factor tree of 117

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

Factor tree of 117117339313
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 117

Number of factors6
Sum of factors182
Sum of proper factors65
Prime factorization3² × 13
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 117 interesting

  • 117 is a composite number, meaning it has more than two factors. It can be written as a product of smaller whole numbers in 3 different ways.
  • 117 is a deficient number: its proper factors sum to 65, which is 52 less than 117 itself.

How to find the factors of 117 yourself

Divide 117 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 √11710.82, because every factor above that pairs with one below it.

117 ÷ 1 = 117
117 ÷ 3 = 39
117 ÷ 9 = 13

Reading both columns gives every factor: 1, 3, 9, 13, 39, 117. The factor calculator does this automatically for any number.

Frequently asked questions about 117

What are the factors of 117?

The factors of 117 are 1, 3, 9, 13, 39, and 117. That is 6 factors in total, counting both 1 and 117.

Is 117 a prime number?

No, 117 is not prime — it is a composite number with 6 factors. A prime number has exactly two factors, but 117 is also divisible by 3.

What is the prime factorization of 117?

The prime factorization of 117 is 3² × 13. Written out in full: 3 × 3 × 13 = 117. Its distinct prime factors are 3, 13.

What two numbers multiply to give 117?

There are 3 pairs of whole numbers that multiply to 117: 1 × 117, 3 × 39, 9 × 13.

What is the sum of the factors of 117?

Adding all the factors of 117 together gives 182. Excluding 117 itself, the proper factors sum to 65.

Is 117 a perfect square?

No, 117 is not a perfect square. There is no whole number that multiplies by itself to give 117. The nearest perfect squares are 100 and 121.

What is the largest factor of 117 other than itself?

The largest factor of 117 apart from 117 itself is 39, since 117 ÷ 39 = 3.

How many factors does 117 have?

117 has 6 factors: 1, 3, 9, 13, 39, and 117. You can verify this from the prime factorization 3² × 13: add 1 to each exponent and multiply, giving 3 × 2 = 6.

Explore more

Try another number in the factor calculator, break 117 down further with the prime factorization calculator, or compare 117 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.