Q: What are the prime factors of the number 13,393,908?

 A: 2, 3, 11, 149, 227

Why are those the prime factors of the number 13,393,908?

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 13,393,908

13,393,908
Factor Arrows
26,696,954
Factor Arrows
23,348,477
Factor Arrows
31,116,159
Factor Arrows
3372,053
Factor Arrows
1133,823
Factor Arrows
149227

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, 11, 149, 227

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 149 x 227 = 13,393,908

This can also be written as 22 x 32 x 111 x 1491 x 2271 = 13,393,908

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


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