Q: What are the prime factors of the number 125,013,153?

 A: 3, 59, 11971

Why are those the prime factors of the number 125,013,153?

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 125,013,153

125,013,153
Factor Arrows
341,671,051
Factor Arrows
59706,289
Factor Arrows
5911,971

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:

3, 59, 11971

We can check our work by multiplying all of the prime factors together: 3 x 59 x 59 x 11,971 = 125,013,153

This can also be written as 31 x 592 x 11,9711 = 125,013,153

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


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