Q: What are the prime factors of the number 30,365,664?

 A: 2, 3, 7, 73, 619

Why are those the prime factors of the number 30,365,664?

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 30,365,664

30,365,664
Factor Arrows
215,182,832
Factor Arrows
27,591,416
Factor Arrows
23,795,708
Factor Arrows
21,897,854
Factor Arrows
2948,927
Factor Arrows
3316,309
Factor Arrows
745,187
Factor Arrows
73619

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, 7, 73, 619

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 7 x 73 x 619 = 30,365,664

This can also be written as 25 x 31 x 71 x 731 x 6191 = 30,365,664

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


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