Q: What are the prime factors of the number 57,931,872?

 A: 2, 3, 603457

Why are those the prime factors of the number 57,931,872?

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 57,931,872

57,931,872
Factor Arrows
228,965,936
Factor Arrows
214,482,968
Factor Arrows
27,241,484
Factor Arrows
23,620,742
Factor Arrows
21,810,371
Factor Arrows
3603,457

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, 603457

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 603,457 = 57,931,872

This can also be written as 25 x 31 x 603,4571 = 57,931,872

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


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