Q: What are the prime factors of the number 57,782,528?

 A: 2, 131, 1723

Why are those the prime factors of the number 57,782,528?

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 57,782,528

57,782,528
Factor Arrows
228,891,264
Factor Arrows
214,445,632
Factor Arrows
27,222,816
Factor Arrows
23,611,408
Factor Arrows
21,805,704
Factor Arrows
2902,852
Factor Arrows
2451,426
Factor Arrows
2225,713
Factor Arrows
1311,723

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, 131, 1723

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 131 x 1,723 = 57,782,528

This can also be written as 28 x 1311 x 1,7231 = 57,782,528

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


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