Q: What are the prime factors of the number 13,646,448?

 A: 2, 3, 31, 1019

Why are those the prime factors of the number 13,646,448?

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 13,646,448

13,646,448
Factor Arrows
26,823,224
Factor Arrows
23,411,612
Factor Arrows
21,705,806
Factor Arrows
2852,903
Factor Arrows
3284,301
Factor Arrows
394,767
Factor Arrows
331,589
Factor Arrows
311,019

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, 31, 1019

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 3 x 31 x 1,019 = 13,646,448

This can also be written as 24 x 33 x 311 x 1,0191 = 13,646,448

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


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