Q: What are the prime factors of the number 115,895,608?

 A: 2, 31, 47, 61, 163

Why are those the prime factors of the number 115,895,608?

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 115,895,608

115,895,608
Factor Arrows
257,947,804
Factor Arrows
228,973,902
Factor Arrows
214,486,951
Factor Arrows
31467,321
Factor Arrows
479,943
Factor Arrows
61163

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, 31, 47, 61, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 31 x 47 x 61 x 163 = 115,895,608

This can also be written as 23 x 311 x 471 x 611 x 1631 = 115,895,608

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


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