Q: What are the prime factors of the number 231,012,432?

 A: 2, 3, 7, 79, 967

Why are those the prime factors of the number 231,012,432?

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 231,012,432

231,012,432
Factor Arrows
2115,506,216
Factor Arrows
257,753,108
Factor Arrows
228,876,554
Factor Arrows
214,438,277
Factor Arrows
34,812,759
Factor Arrows
31,604,253
Factor Arrows
3534,751
Factor Arrows
776,393
Factor Arrows
79967

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, 7, 79, 967

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 79 x 967 = 231,012,432

This can also be written as 24 x 33 x 71 x 791 x 9671 = 231,012,432

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


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