Q: What are the prime factors of the number 307,510?

 A: 2, 5, 7, 23, 191

Why are those the prime factors of the number 307,510?

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 307,510

307,510
Factor Arrows
2153,755
Factor Arrows
530,751
Factor Arrows
74,393
Factor Arrows
23191

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, 23, 191

We can check our work by multiplying all of the prime factors together: 2 x 5 x 7 x 23 x 191 = 307,510

This can also be written as 21 x 51 x 71 x 231 x 1911 = 307,510

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


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