Q: What are the prime factors of the number 13,608,180?

 A: 2, 3, 5, 19, 23, 173

Why are those the prime factors of the number 13,608,180?

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 13,608,180

13,608,180
Factor Arrows
26,804,090
Factor Arrows
23,402,045
Factor Arrows
31,134,015
Factor Arrows
3378,005
Factor Arrows
575,601
Factor Arrows
193,979
Factor Arrows
23173

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:

2, 3, 5, 19, 23, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 19 x 23 x 173 = 13,608,180

This can also be written as 22 x 32 x 51 x 191 x 231 x 1731 = 13,608,180

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


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