Q: What are the prime factors of the number 15,253,904?

 A: 2, 61, 15629

Why are those the prime factors of the number 15,253,904?

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 15,253,904

15,253,904
Factor Arrows
27,626,952
Factor Arrows
23,813,476
Factor Arrows
21,906,738
Factor Arrows
2953,369
Factor Arrows
6115,629

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, 61, 15629

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 61 x 15,629 = 15,253,904

This can also be written as 24 x 611 x 15,6291 = 15,253,904

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


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