Q: What are the prime factors of the number 120,192?

 A: 2, 3, 313

Why are those the prime factors of the number 120,192?

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 120,192

120,192
Factor Arrows
260,096
Factor Arrows
230,048
Factor Arrows
215,024
Factor Arrows
27,512
Factor Arrows
23,756
Factor Arrows
21,878
Factor Arrows
2939
Factor Arrows
3313

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, 313

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 x 3 x 313 = 120,192

This can also be written as 27 x 31 x 3131 = 120,192

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


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