Q: What are the prime factors of the number 371,399?

 A: 7, 17, 3121

Why are those the prime factors of the number 371,399?

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 371,399

371,399
Factor Arrows
753,057
Factor Arrows
173,121

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:

7, 17, 3121

We can check our work by multiplying all of the prime factors together: 7 x 17 x 3,121 = 371,399

This can also be written as 71 x 171 x 3,1211 = 371,399

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


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