Q: What are the prime factors of the number 15,442,515?

 A: 3, 5, 11, 10399

Why are those the prime factors of the number 15,442,515?

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 15,442,515

15,442,515
Factor Arrows
35,147,505
Factor Arrows
31,715,835
Factor Arrows
3571,945
Factor Arrows
5114,389
Factor Arrows
1110,399

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:

3, 5, 11, 10399

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 11 x 10,399 = 15,442,515

This can also be written as 33 x 51 x 111 x 10,3991 = 15,442,515

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


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