Q: What are the prime factors of the number 240,192?

 A: 2, 3, 139

Why are those the prime factors of the number 240,192?

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 240,192

240,192
Factor Arrows
2120,096
Factor Arrows
260,048
Factor Arrows
230,024
Factor Arrows
215,012
Factor Arrows
27,506
Factor Arrows
23,753
Factor Arrows
31,251
Factor Arrows
3417
Factor Arrows
3139

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, 139

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 3 x 3 x 3 x 139 = 240,192

This can also be written as 26 x 33 x 1391 = 240,192

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


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