Q: What are the prime factors of the number 109,709,619?

 A: 3, 17, 67, 97, 331

Why are those the prime factors of the number 109,709,619?

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 109,709,619

109,709,619
Factor Arrows
336,569,873
Factor Arrows
172,151,169
Factor Arrows
6732,107
Factor Arrows
97331

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, 17, 67, 97, 331

We can check our work by multiplying all of the prime factors together: 3 x 17 x 67 x 97 x 331 = 109,709,619

This can also be written as 31 x 171 x 671 x 971 x 3311 = 109,709,619

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


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