Q: What are the prime factors of the number 311,610?

 A: 2, 3, 5, 13, 17, 47

Why are those the prime factors of the number 311,610?

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 311,610

311,610
Factor Arrows
2155,805
Factor Arrows
351,935
Factor Arrows
510,387
Factor Arrows
13799
Factor Arrows
1747

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, 5, 13, 17, 47

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 13 x 17 x 47 = 311,610

This can also be written as 21 x 31 x 51 x 131 x 171 x 471 = 311,610

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


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