Q: What are the prime factors of the number 66,164,749?

 A: 7, 479, 2819

Why are those the prime factors of the number 66,164,749?

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 66,164,749

66,164,749
Factor Arrows
79,452,107
Factor Arrows
71,350,301
Factor Arrows
4792,819

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:

7, 479, 2819

We can check our work by multiplying all of the prime factors together: 7 x 7 x 479 x 2,819 = 66,164,749

This can also be written as 72 x 4791 x 2,8191 = 66,164,749

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


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