Q: What are the prime factors of the number 66,613,764?

 A: 2, 3, 7, 37, 21433

Why are those the prime factors of the number 66,613,764?

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 66,613,764

66,613,764
Factor Arrows
233,306,882
Factor Arrows
216,653,441
Factor Arrows
35,551,147
Factor Arrows
7793,021
Factor Arrows
3721,433

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, 7, 37, 21433

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 37 x 21,433 = 66,613,764

This can also be written as 22 x 31 x 71 x 371 x 21,4331 = 66,613,764

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


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