Q: What are the prime factors of the number 125,553,568?

 A: 2, 7, 17, 32971

Why are those the prime factors of the number 125,553,568?

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 125,553,568

125,553,568
Factor Arrows
262,776,784
Factor Arrows
231,388,392
Factor Arrows
215,694,196
Factor Arrows
27,847,098
Factor Arrows
23,923,549
Factor Arrows
7560,507
Factor Arrows
1732,971

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, 17, 32971

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 7 x 17 x 32,971 = 125,553,568

This can also be written as 25 x 71 x 171 x 32,9711 = 125,553,568

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


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