Q: What are the prime factors of the number 89,909,703?

 A: 3, 13, 31, 8263

Why are those the prime factors of the number 89,909,703?

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 89,909,703

89,909,703
Factor Arrows
329,969,901
Factor Arrows
39,989,967
Factor Arrows
33,329,989
Factor Arrows
13256,153
Factor Arrows
318,263

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, 13, 31, 8263

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 13 x 31 x 8,263 = 89,909,703

This can also be written as 33 x 131 x 311 x 8,2631 = 89,909,703

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


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