Q: What are the prime factors of the number 13,712,405?

 A: 5, 7, 97, 577

Why are those the prime factors of the number 13,712,405?

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 13,712,405

13,712,405
Factor Arrows
52,742,481
Factor Arrows
7391,783
Factor Arrows
755,969
Factor Arrows
97577

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, 7, 97, 577

We can check our work by multiplying all of the prime factors together: 5 x 7 x 7 x 97 x 577 = 13,712,405

This can also be written as 51 x 72 x 971 x 5771 = 13,712,405

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


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