Q: What are the prime factors of the number 57,485,520?

 A: 2, 3, 5, 79841

Why are those the prime factors of the number 57,485,520?

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 57,485,520

57,485,520
Factor Arrows
228,742,760
Factor Arrows
214,371,380
Factor Arrows
27,185,690
Factor Arrows
23,592,845
Factor Arrows
31,197,615
Factor Arrows
3399,205
Factor Arrows
579,841

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, 79841

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 79,841 = 57,485,520

This can also be written as 24 x 32 x 51 x 79,8411 = 57,485,520

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


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