Q: What are the prime factors of the number 133,008?

 A: 2, 3, 17, 163

Why are those the prime factors of the number 133,008?

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 133,008

133,008
Factor Arrows
266,504
Factor Arrows
233,252
Factor Arrows
216,626
Factor Arrows
28,313
Factor Arrows
32,771
Factor Arrows
17163

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, 17, 163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 17 x 163 = 133,008

This can also be written as 24 x 31 x 171 x 1631 = 133,008

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


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