Q: What are the prime factors of the number 64,064?

 A: 2, 7, 11, 13

Why are those the prime factors of the number 64,064?

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 64,064

64,064
Factor Arrows
232,032
Factor Arrows
216,016
Factor Arrows
28,008
Factor Arrows
24,004
Factor Arrows
22,002
Factor Arrows
21,001
Factor Arrows
7143
Factor Arrows
1113

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, 7, 11, 13

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 7 x 11 x 13 = 64,064

This can also be written as 26 x 71 x 111 x 131 = 64,064

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


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