Q: What are the prime factors of the number 691,734?

 A: 2, 3, 31, 3719

Why are those the prime factors of the number 691,734?

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 691,734

691,734
Factor Arrows
2345,867
Factor Arrows
3115,289
Factor Arrows
313,719

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, 31, 3719

We can check our work by multiplying all of the prime factors together: 2 x 3 x 31 x 3,719 = 691,734

This can also be written as 21 x 31 x 311 x 3,7191 = 691,734

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


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