Q: What are the prime factors of the number 691,114?

 A: 2, 31, 71, 157

Why are those the prime factors of the number 691,114?

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 691,114

691,114
Factor Arrows
2345,557
Factor Arrows
3111,147
Factor Arrows
71157

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, 31, 71, 157

We can check our work by multiplying all of the prime factors together: 2 x 31 x 71 x 157 = 691,114

This can also be written as 21 x 311 x 711 x 1571 = 691,114

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


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