Q: What are the prime factors of the number 57,616,740?

 A: 2, 3, 5, 17, 19, 991

Why are those the prime factors of the number 57,616,740?

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 57,616,740

57,616,740
Factor Arrows
228,808,370
Factor Arrows
214,404,185
Factor Arrows
34,801,395
Factor Arrows
31,600,465
Factor Arrows
5320,093
Factor Arrows
1718,829
Factor Arrows
19991

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, 17, 19, 991

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 17 x 19 x 991 = 57,616,740

This can also be written as 22 x 32 x 51 x 171 x 191 x 9911 = 57,616,740

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


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