Q: What are the prime factors of the number 581,500,066?

 A: 2, 7, 37, 1122587

Why are those the prime factors of the number 581,500,066?

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 581,500,066

581,500,066
Factor Arrows
2290,750,033
Factor Arrows
741,535,719
Factor Arrows
371,122,587

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, 7, 37, 1122587

We can check our work by multiplying all of the prime factors together: 2 x 7 x 37 x 1,122,587 = 581,500,066

This can also be written as 21 x 71 x 371 x 1,122,5871 = 581,500,066

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


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