Q: What are the prime factors of the number 13,457,983?

 A: 7, 11, 15889

Why are those the prime factors of the number 13,457,983?

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 13,457,983

13,457,983
Factor Arrows
71,922,569
Factor Arrows
11174,779
Factor Arrows
1115,889

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:

7, 11, 15889

We can check our work by multiplying all of the prime factors together: 7 x 11 x 11 x 15,889 = 13,457,983

This can also be written as 71 x 112 x 15,8891 = 13,457,983

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


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