Q: What are the prime factors of the number 15,539,080?

 A: 2, 5, 388477

Why are those the prime factors of the number 15,539,080?

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 15,539,080

15,539,080
Factor Arrows
27,769,540
Factor Arrows
23,884,770
Factor Arrows
21,942,385
Factor Arrows
5388,477

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, 5, 388477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 388,477 = 15,539,080

This can also be written as 23 x 51 x 388,4771 = 15,539,080

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


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