Q: What are the prime factors of the number 132,768?

 A: 2, 3, 461

Why are those the prime factors of the number 132,768?

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 132,768

132,768
Factor Arrows
266,384
Factor Arrows
233,192
Factor Arrows
216,596
Factor Arrows
28,298
Factor Arrows
24,149
Factor Arrows
31,383
Factor Arrows
3461

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, 461

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 461 = 132,768

This can also be written as 25 x 32 x 4611 = 132,768

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


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