Q: What are the prime factors of the number 15,235,110?

 A: 2, 3, 5, 11, 1399

Why are those the prime factors of the number 15,235,110?

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 15,235,110

15,235,110
Factor Arrows
27,617,555
Factor Arrows
32,539,185
Factor Arrows
3846,395
Factor Arrows
5169,279
Factor Arrows
1115,389
Factor Arrows
111,399

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, 11, 1399

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 11 x 11 x 1,399 = 15,235,110

This can also be written as 21 x 32 x 51 x 112 x 1,3991 = 15,235,110

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


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