Q: What are the prime factors of the number 125,247,864?

 A: 2, 3, 7, 79, 9437

Why are those the prime factors of the number 125,247,864?

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 125,247,864

125,247,864
Factor Arrows
262,623,932
Factor Arrows
231,311,966
Factor Arrows
215,655,983
Factor Arrows
35,218,661
Factor Arrows
7745,523
Factor Arrows
799,437

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, 7, 79, 9437

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 7 x 79 x 9,437 = 125,247,864

This can also be written as 23 x 31 x 71 x 791 x 9,4371 = 125,247,864

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


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