Q: What are the prime factors of the number 3,057,664?

 A: 2, 1493

Why are those the prime factors of the number 3,057,664?

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 3,057,664

3,057,664
Factor Arrows
21,528,832
Factor Arrows
2764,416
Factor Arrows
2382,208
Factor Arrows
2191,104
Factor Arrows
295,552
Factor Arrows
247,776
Factor Arrows
223,888
Factor Arrows
211,944
Factor Arrows
25,972
Factor Arrows
22,986
Factor Arrows
21,493

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, 1493

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 1,493 = 3,057,664

This can also be written as 211 x 1,4931 = 3,057,664

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


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