Q: What are the prime factors of the number 13,131,792?

 A: 2, 3, 91193

Why are those the prime factors of the number 13,131,792?

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 13,131,792

13,131,792
Factor Arrows
26,565,896
Factor Arrows
23,282,948
Factor Arrows
21,641,474
Factor Arrows
2820,737
Factor Arrows
3273,579
Factor Arrows
391,193

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, 91193

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 91,193 = 13,131,792

This can also be written as 24 x 32 x 91,1931 = 13,131,792

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


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