Q: What are the prime factors of the number 72,575,109?

 A: 3, 97, 3079

Why are those the prime factors of the number 72,575,109?

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 72,575,109

72,575,109
Factor Arrows
324,191,703
Factor Arrows
38,063,901
Factor Arrows
32,687,967
Factor Arrows
3895,989
Factor Arrows
3298,663
Factor Arrows
973,079

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, 97, 3079

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 97 x 3,079 = 72,575,109

This can also be written as 35 x 971 x 3,0791 = 72,575,109

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


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