Q: What are the prime factors of the number 125,562,528?

 A: 2, 3, 7, 13, 1597

Why are those the prime factors of the number 125,562,528?

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 125,562,528

125,562,528
Factor Arrows
262,781,264
Factor Arrows
231,390,632
Factor Arrows
215,695,316
Factor Arrows
27,847,658
Factor Arrows
23,923,829
Factor Arrows
31,307,943
Factor Arrows
3435,981
Factor Arrows
3145,327
Factor Arrows
720,761
Factor Arrows
131,597

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, 13, 1597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 7 x 13 x 1,597 = 125,562,528

This can also be written as 25 x 33 x 71 x 131 x 1,5971 = 125,562,528

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


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