Q: What are the prime factors of the number 667,782?

 A: 2, 3, 23, 1613

Why are those the prime factors of the number 667,782?

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 667,782

667,782
Factor Arrows
2333,891
Factor Arrows
3111,297
Factor Arrows
337,099
Factor Arrows
231,613

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, 23, 1613

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 23 x 1,613 = 667,782

This can also be written as 21 x 32 x 231 x 1,6131 = 667,782

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


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