Q: What are the prime factors of the number 100,644?

 A: 2, 3, 8387

Why are those the prime factors of the number 100,644?

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 100,644

100,644
Factor Arrows
250,322
Factor Arrows
225,161
Factor Arrows
38,387

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, 3, 8387

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 8,387 = 100,644

This can also be written as 22 x 31 x 8,3871 = 100,644

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


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