Q: What are the prime factors of the number 15,039,675?

 A: 3, 5, 7, 1061

Why are those the prime factors of the number 15,039,675?

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 15,039,675

15,039,675
Factor Arrows
35,013,225
Factor Arrows
31,671,075
Factor Arrows
3557,025
Factor Arrows
3185,675
Factor Arrows
537,135
Factor Arrows
57,427
Factor Arrows
71,061

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, 5, 7, 1061

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 5 x 5 x 7 x 1,061 = 15,039,675

This can also be written as 34 x 52 x 71 x 1,0611 = 15,039,675

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


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