Q: What are the prime factors of the number 28,493,664?

 A: 2, 3, 293, 1013

Why are those the prime factors of the number 28,493,664?

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 28,493,664

28,493,664
Factor Arrows
214,246,832
Factor Arrows
27,123,416
Factor Arrows
23,561,708
Factor Arrows
21,780,854
Factor Arrows
2890,427
Factor Arrows
3296,809
Factor Arrows
2931,013

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, 293, 1013

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 293 x 1,013 = 28,493,664

This can also be written as 25 x 31 x 2931 x 1,0131 = 28,493,664

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


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