Q: What are the prime factors of the number 64,976?

 A: 2, 31, 131

Why are those the prime factors of the number 64,976?

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 64,976

64,976
Factor Arrows
232,488
Factor Arrows
216,244
Factor Arrows
28,122
Factor Arrows
24,061
Factor Arrows
31131

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, 31, 131

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 31 x 131 = 64,976

This can also be written as 24 x 311 x 1311 = 64,976

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


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