Q: What are the prime factors of the number 694,386?

 A: 2, 3, 7, 11, 167

Why are those the prime factors of the number 694,386?

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 694,386

694,386
Factor Arrows
2347,193
Factor Arrows
3115,731
Factor Arrows
338,577
Factor Arrows
312,859
Factor Arrows
71,837
Factor Arrows
11167

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, 7, 11, 167

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 11 x 167 = 694,386

This can also be written as 21 x 33 x 71 x 111 x 1671 = 694,386

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


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