Q: What are the prime factors of the number 909,881?

 A: 7, 31, 599

Why are those the prime factors of the number 909,881?

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 909,881

909,881
Factor Arrows
7129,983
Factor Arrows
718,569
Factor Arrows
31599

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:

7, 31, 599

We can check our work by multiplying all of the prime factors together: 7 x 7 x 31 x 599 = 909,881

This can also be written as 72 x 311 x 5991 = 909,881

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


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