Q: What are the prime factors of the number 13,545,664?

 A: 2, 11, 71, 271

Why are those the prime factors of the number 13,545,664?

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 13,545,664

13,545,664
Factor Arrows
26,772,832
Factor Arrows
23,386,416
Factor Arrows
21,693,208
Factor Arrows
2846,604
Factor Arrows
2423,302
Factor Arrows
2211,651
Factor Arrows
1119,241
Factor Arrows
71271

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, 11, 71, 271

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 11 x 71 x 271 = 13,545,664

This can also be written as 26 x 111 x 711 x 2711 = 13,545,664

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


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