Q: What are the prime factors of the number 231,402,304?

 A: 2, 7, 113, 653

Why are those the prime factors of the number 231,402,304?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 231,402,304

231,402,304
Factor Arrows
2115,701,152
Factor Arrows
257,850,576
Factor Arrows
228,925,288
Factor Arrows
214,462,644
Factor Arrows
27,231,322
Factor Arrows
23,615,661
Factor Arrows
7516,523
Factor Arrows
773,789
Factor Arrows
113653

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 7, 113, 653

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 7 x 7 x 113 x 653 = 231,402,304

This can also be written as 26 x 72 x 1131 x 6531 = 231,402,304

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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