Q: What are the prime factors of the number 72,860,109?

 A: 3, 7, 495647

Why are those the prime factors of the number 72,860,109?

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 72,860,109

72,860,109
Factor Arrows
324,286,703
Factor Arrows
73,469,529
Factor Arrows
7495,647

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, 495647

We can check our work by multiplying all of the prime factors together: 3 x 7 x 7 x 495,647 = 72,860,109

This can also be written as 31 x 72 x 495,6471 = 72,860,109

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


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