Q: What are the prime factors of the number 86,656?

 A: 2, 677

Why are those the prime factors of the number 86,656?

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 86,656

86,656
Factor Arrows
243,328
Factor Arrows
221,664
Factor Arrows
210,832
Factor Arrows
25,416
Factor Arrows
22,708
Factor Arrows
21,354
Factor Arrows
2677

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, 677

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 677 = 86,656

This can also be written as 27 x 6771 = 86,656

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


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