Q: What are the prime factors of the number 13,864,064?

 A: 2, 89, 1217

Why are those the prime factors of the number 13,864,064?

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 13,864,064

13,864,064
Factor Arrows
26,932,032
Factor Arrows
23,466,016
Factor Arrows
21,733,008
Factor Arrows
2866,504
Factor Arrows
2433,252
Factor Arrows
2216,626
Factor Arrows
2108,313
Factor Arrows
891,217

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, 89, 1217

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 89 x 1,217 = 13,864,064

This can also be written as 27 x 891 x 1,2171 = 13,864,064

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


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