Q: What are the prime factors of the number 120,115,525?

 A: 5, 83, 107, 541

Why are those the prime factors of the number 120,115,525?

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 120,115,525

120,115,525
Factor Arrows
524,023,105
Factor Arrows
54,804,621
Factor Arrows
8357,887
Factor Arrows
107541

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:

5, 83, 107, 541

We can check our work by multiplying all of the prime factors together: 5 x 5 x 83 x 107 x 541 = 120,115,525

This can also be written as 52 x 831 x 1071 x 5411 = 120,115,525

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


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