Q: What are the prime factors of the number 57,123,120?

 A: 2, 3, 5, 19, 12527

Why are those the prime factors of the number 57,123,120?

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 57,123,120

57,123,120
Factor Arrows
228,561,560
Factor Arrows
214,280,780
Factor Arrows
27,140,390
Factor Arrows
23,570,195
Factor Arrows
31,190,065
Factor Arrows
5238,013
Factor Arrows
1912,527

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, 5, 19, 12527

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 5 x 19 x 12,527 = 57,123,120

This can also be written as 24 x 31 x 51 x 191 x 12,5271 = 57,123,120

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


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