Q: What are the prime factors of the number 156,175,728?

 A: 2, 3, 167, 19483

Why are those the prime factors of the number 156,175,728?

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 156,175,728

156,175,728
Factor Arrows
278,087,864
Factor Arrows
239,043,932
Factor Arrows
219,521,966
Factor Arrows
29,760,983
Factor Arrows
33,253,661
Factor Arrows
16719,483

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, 167, 19483

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 167 x 19,483 = 156,175,728

This can also be written as 24 x 31 x 1671 x 19,4831 = 156,175,728

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


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