Q: What are the prime factors of the number 431,331,252?

 A: 2, 3, 11, 163, 20047

Why are those the prime factors of the number 431,331,252?

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 431,331,252

431,331,252
Factor Arrows
2215,665,626
Factor Arrows
2107,832,813
Factor Arrows
335,944,271
Factor Arrows
113,267,661
Factor Arrows
16320,047

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, 3, 11, 163, 20047

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 11 x 163 x 20,047 = 431,331,252

This can also be written as 22 x 31 x 111 x 1631 x 20,0471 = 431,331,252

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


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