Q: What are the prime factors of the number 57,220,352?

 A: 2, 7, 37, 863

Why are those the prime factors of the number 57,220,352?

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 57,220,352

57,220,352
Factor Arrows
228,610,176
Factor Arrows
214,305,088
Factor Arrows
27,152,544
Factor Arrows
23,576,272
Factor Arrows
21,788,136
Factor Arrows
2894,068
Factor Arrows
2447,034
Factor Arrows
2223,517
Factor Arrows
731,931
Factor Arrows
37863

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, 7, 37, 863

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 7 x 37 x 863 = 57,220,352

This can also be written as 28 x 71 x 371 x 8631 = 57,220,352

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


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