Q: What are the prime factors of the number 57,042?

 A: 2, 3, 3169

Why are those the prime factors of the number 57,042?

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 57,042

57,042
Factor Arrows
228,521
Factor Arrows
39,507
Factor Arrows
33,169

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, 3169

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3,169 = 57,042

This can also be written as 21 x 32 x 3,1691 = 57,042

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


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