Q: What are the prime factors of the number 557,613,560?

 A: 2, 5, 7, 1991477

Why are those the prime factors of the number 557,613,560?

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 557,613,560

557,613,560
Factor Arrows
2278,806,780
Factor Arrows
2139,403,390
Factor Arrows
269,701,695
Factor Arrows
513,940,339
Factor Arrows
71,991,477

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, 5, 7, 1991477

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 7 x 1,991,477 = 557,613,560

This can also be written as 23 x 51 x 71 x 1,991,4771 = 557,613,560

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


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