Q: What are the prime factors of the number 307,160?

 A: 2, 5, 7, 1097

Why are those the prime factors of the number 307,160?

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 307,160

307,160
Factor Arrows
2153,580
Factor Arrows
276,790
Factor Arrows
238,395
Factor Arrows
57,679
Factor Arrows
71,097

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, 7, 1097

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 1,097 = 307,160

This can also be written as 23 x 51 x 71 x 1,0971 = 307,160

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


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