Q: What are the prime factors of the number 132,192?

 A: 2, 3, 17

Why are those the prime factors of the number 132,192?

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 132,192

132,192
Factor Arrows
266,096
Factor Arrows
233,048
Factor Arrows
216,524
Factor Arrows
28,262
Factor Arrows
24,131
Factor Arrows
31,377
Factor Arrows
3459
Factor Arrows
3153
Factor Arrows
351
Factor Arrows
317

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 17 = 132,192

This can also be written as 25 x 35 x 171 = 132,192

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


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