Q: What are the prime factors of the number 157,088,656?

 A: 2, 19, 31, 79, 211

Why are those the prime factors of the number 157,088,656?

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 157,088,656

157,088,656
Factor Arrows
278,544,328
Factor Arrows
239,272,164
Factor Arrows
219,636,082
Factor Arrows
29,818,041
Factor Arrows
19516,739
Factor Arrows
3116,669
Factor Arrows
79211

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, 19, 31, 79, 211

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 19 x 31 x 79 x 211 = 157,088,656

This can also be written as 24 x 191 x 311 x 791 x 2111 = 157,088,656

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


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