Q: What are the prime factors of the number 13,850,109?

 A: 3, 7, 13, 1879

Why are those the prime factors of the number 13,850,109?

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 13,850,109

13,850,109
Factor Arrows
34,616,703
Factor Arrows
31,538,901
Factor Arrows
3512,967
Factor Arrows
3170,989
Factor Arrows
724,427
Factor Arrows
131,879

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, 13, 1879

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 13 x 1,879 = 13,850,109

This can also be written as 34 x 71 x 131 x 1,8791 = 13,850,109

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


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