Q: What are the prime factors of the number 27,140?

 A: 2, 5, 23, 59

Why are those the prime factors of the number 27,140?

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 27,140

27,140
Factor Arrows
213,570
Factor Arrows
26,785
Factor Arrows
51,357
Factor Arrows
2359

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, 5, 23, 59

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 23 x 59 = 27,140

This can also be written as 22 x 51 x 231 x 591 = 27,140

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


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