Q: What are the prime factors of the number 666,616,410?

 A: 2, 3, 5, 17, 239, 1823

Why are those the prime factors of the number 666,616,410?

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 666,616,410

666,616,410
Factor Arrows
2333,308,205
Factor Arrows
3111,102,735
Factor Arrows
337,034,245
Factor Arrows
57,406,849
Factor Arrows
17435,697
Factor Arrows
2391,823

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, 239, 1823

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 17 x 239 x 1,823 = 666,616,410

This can also be written as 21 x 32 x 51 x 171 x 2391 x 1,8231 = 666,616,410

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


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