Q: What are the prime factors of the number 16,665,610?

 A: 2, 5, 13, 17, 7541

Why are those the prime factors of the number 16,665,610?

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 16,665,610

16,665,610
Factor Arrows
28,332,805
Factor Arrows
51,666,561
Factor Arrows
13128,197
Factor Arrows
177,541

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, 13, 17, 7541

We can check our work by multiplying all of the prime factors together: 2 x 5 x 13 x 17 x 7,541 = 16,665,610

This can also be written as 21 x 51 x 131 x 171 x 7,5411 = 16,665,610

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


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