Q: What are the prime factors of the number 279,792?

 A: 2, 3, 29, 67

Why are those the prime factors of the number 279,792?

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 279,792

279,792
Factor Arrows
2139,896
Factor Arrows
269,948
Factor Arrows
234,974
Factor Arrows
217,487
Factor Arrows
35,829
Factor Arrows
31,943
Factor Arrows
2967

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, 29, 67

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 29 x 67 = 279,792

This can also be written as 24 x 32 x 291 x 671 = 279,792

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


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