Q: What are the prime factors of the number 86,997?

 A: 3, 47, 617

Why are those the prime factors of the number 86,997?

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 86,997

86,997
Factor Arrows
328,999
Factor Arrows
47617

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:

3, 47, 617

We can check our work by multiplying all of the prime factors together: 3 x 47 x 617 = 86,997

This can also be written as 31 x 471 x 6171 = 86,997

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


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