Q: What are the prime factors of the number 665,126,610?

 A: 2, 3, 5, 47, 471721

Why are those the prime factors of the number 665,126,610?

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 665,126,610

665,126,610
Factor Arrows
2332,563,305
Factor Arrows
3110,854,435
Factor Arrows
522,170,887
Factor Arrows
47471,721

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, 47, 471721

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 47 x 471,721 = 665,126,610

This can also be written as 21 x 31 x 51 x 471 x 471,7211 = 665,126,610

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


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