Q: What are the prime factors of the number 18,704?

 A: 2, 7, 167

Why are those the prime factors of the number 18,704?

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 18,704

18,704
Factor Arrows
29,352
Factor Arrows
24,676
Factor Arrows
22,338
Factor Arrows
21,169
Factor Arrows
7167

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, 167

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 7 x 167 = 18,704

This can also be written as 24 x 71 x 1671 = 18,704

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


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