Q: What are the prime factors of the number 91,605,664?

 A: 2, 29, 98713

Why are those the prime factors of the number 91,605,664?

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 91,605,664

91,605,664
Factor Arrows
245,802,832
Factor Arrows
222,901,416
Factor Arrows
211,450,708
Factor Arrows
25,725,354
Factor Arrows
22,862,677
Factor Arrows
2998,713

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, 29, 98713

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 29 x 98,713 = 91,605,664

This can also be written as 25 x 291 x 98,7131 = 91,605,664

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


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