Q: What are the prime factors of the number 31,101,399?

 A: 3, 7, 61, 8093

Why are those the prime factors of the number 31,101,399?

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 31,101,399

31,101,399
Factor Arrows
310,367,133
Factor Arrows
33,455,711
Factor Arrows
7493,673
Factor Arrows
618,093

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, 7, 61, 8093

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 61 x 8,093 = 31,101,399

This can also be written as 32 x 71 x 611 x 8,0931 = 31,101,399

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


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