Q: What are the prime factors of the number 718,580?

 A: 2, 5, 19, 31, 61

Why are those the prime factors of the number 718,580?

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 718,580

718,580
Factor Arrows
2359,290
Factor Arrows
2179,645
Factor Arrows
535,929
Factor Arrows
191,891
Factor Arrows
3161

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, 19, 31, 61

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 19 x 31 x 61 = 718,580

This can also be written as 22 x 51 x 191 x 311 x 611 = 718,580

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


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