Q: What are the prime factors of the number 658,812?

 A: 2, 3, 7, 11, 23, 31

Why are those the prime factors of the number 658,812?

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 658,812

658,812
Factor Arrows
2329,406
Factor Arrows
2164,703
Factor Arrows
354,901
Factor Arrows
77,843
Factor Arrows
11713
Factor Arrows
2331

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, 23, 31

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 11 x 23 x 31 = 658,812

This can also be written as 22 x 31 x 71 x 111 x 231 x 311 = 658,812

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


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