Q: What are the prime factors of the number 718,173?

 A: 3, 67, 397

Why are those the prime factors of the number 718,173?

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 718,173

718,173
Factor Arrows
3239,391
Factor Arrows
379,797
Factor Arrows
326,599
Factor Arrows
67397

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:

3, 67, 397

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 67 x 397 = 718,173

This can also be written as 33 x 671 x 3971 = 718,173

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


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