Q: What are the prime factors of the number 125,356,464?

 A: 2, 3, 61, 67, 71

Why are those the prime factors of the number 125,356,464?

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 125,356,464

125,356,464
Factor Arrows
262,678,232
Factor Arrows
231,339,116
Factor Arrows
215,669,558
Factor Arrows
27,834,779
Factor Arrows
32,611,593
Factor Arrows
3870,531
Factor Arrows
3290,177
Factor Arrows
614,757
Factor Arrows
6771

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, 61, 67, 71

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 61 x 67 x 71 = 125,356,464

This can also be written as 24 x 33 x 611 x 671 x 711 = 125,356,464

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


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