Q: What are the prime factors of the number 136,470,656?

 A: 2, 7, 152311

Why are those the prime factors of the number 136,470,656?

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 136,470,656

136,470,656
Factor Arrows
268,235,328
Factor Arrows
234,117,664
Factor Arrows
217,058,832
Factor Arrows
28,529,416
Factor Arrows
24,264,708
Factor Arrows
22,132,354
Factor Arrows
21,066,177
Factor Arrows
7152,311

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, 152311

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 2 x 7 x 152,311 = 136,470,656

This can also be written as 27 x 71 x 152,3111 = 136,470,656

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


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