Q: What are the prime factors of the number 85,089?

 A: 3, 113, 251

Why are those the prime factors of the number 85,089?

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 85,089

85,089
Factor Arrows
328,363
Factor Arrows
113251

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:

3, 113, 251

We can check our work by multiplying all of the prime factors together: 3 x 113 x 251 = 85,089

This can also be written as 31 x 1131 x 2511 = 85,089

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


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