Factor Calculator

Factors of 207

The factors of 207 are 1, 3, 9, 23, 69, and 207. In total, 207 has 6 factors. Its prime factorization is 3² × 23, and the sum of all its factors is 312.

All factors of 207

Here are all 6 factors of 207, listed from smallest to largest.

1392369207

Factor pairs of 207

These 3 pairs of whole numbers each multiply to give 207.

1 × 207 = 207
3 × 69 = 207
9 × 23 = 207

Prime factorization of 207

Dividing 207 by the smallest prime at each step gives its prime factorization:

207 ÷ 3 = 69
69 ÷ 3 = 23
23 ÷ 23 = 1
Result: 207 = 3 × 3 × 23 = 3² × 23

The distinct prime factors of 207 are 3, 23. To factorize any other number, use the prime factorization calculator.

Factor tree of 207

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

Factor tree of 207207369323
Prime factors are shown in solid indigo. Composite numbers split into their smallest prime and the quotient.

Properties of 207

Number of factors6
Sum of factors312
Sum of proper factors105
Prime factorization3² × 23
Prime or composite?Composite
Even or odd?Odd
Perfect square?No
Perfect cube?No
ClassificationDeficient

What makes 207 interesting

  • 207 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.
  • 207 is a deficient number: its proper factors sum to 105, which is 102 less than 207 itself.

How to find the factors of 207 yourself

Divide 207 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 √20714.39, because every factor above that pairs with one below it.

207 ÷ 1 = 207
207 ÷ 3 = 69
207 ÷ 9 = 23

Reading both columns gives every factor: 1, 3, 9, 23, 69, 207. The factor calculator does this automatically for any number.

Frequently asked questions about 207

What are the factors of 207?

The factors of 207 are 1, 3, 9, 23, 69, and 207. That is 6 factors in total, counting both 1 and 207.

Is 207 a prime number?

No, 207 is not prime — it is a composite number with 6 factors. A prime number has exactly two factors, but 207 is also divisible by 3.

What is the prime factorization of 207?

The prime factorization of 207 is 3² × 23. Written out in full: 3 × 3 × 23 = 207. Its distinct prime factors are 3, 23.

What two numbers multiply to give 207?

There are 3 pairs of whole numbers that multiply to 207: 1 × 207, 3 × 69, 9 × 23.

What is the sum of the factors of 207?

Adding all the factors of 207 together gives 312. Excluding 207 itself, the proper factors sum to 105.

Is 207 a perfect square?

No, 207 is not a perfect square. There is no whole number that multiplies by itself to give 207. The nearest perfect squares are 196 and 225.

What is the largest factor of 207 other than itself?

The largest factor of 207 apart from 207 itself is 69, since 207 ÷ 69 = 3.

How many factors does 207 have?

207 has 6 factors: 1, 3, 9, 23, 69, and 207. You can verify this from the prime factorization 3² × 23: add 1 to each exponent and multiply, giving 3 × 2 = 6.

Explore more

Try another number in the factor calculator, break 207 down further with the prime factorization calculator, or compare 207 with another number using the GCF calculator and LCM calculator. For divisor counts and sums, see the divisor calculator.