Q: What are the prime factors of the number 577,137,330?

 A: 2, 3, 5, 7, 11, 67, 113

Why are those the prime factors of the number 577,137,330?

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 577,137,330

577,137,330
Factor Arrows
2288,568,665
Factor Arrows
396,189,555
Factor Arrows
332,063,185
Factor Arrows
56,412,637
Factor Arrows
7916,091
Factor Arrows
1183,281
Factor Arrows
117,571
Factor Arrows
67113

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, 7, 11, 67, 113

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 7 x 11 x 11 x 67 x 113 = 577,137,330

This can also be written as 21 x 32 x 51 x 71 x 112 x 671 x 1131 = 577,137,330

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


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