Q: What are the prime factors of the number 133,184?

 A: 2, 2081

Why are those the prime factors of the number 133,184?

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 133,184

133,184
Factor Arrows
266,592
Factor Arrows
233,296
Factor Arrows
216,648
Factor Arrows
28,324
Factor Arrows
24,162
Factor Arrows
22,081

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, 2081

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 2,081 = 133,184

This can also be written as 26 x 2,0811 = 133,184

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


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