Q: What are the prime factors of the number 66,655,149?

 A: 3, 11, 16693

Why are those the prime factors of the number 66,655,149?

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 66,655,149

66,655,149
Factor Arrows
322,218,383
Factor Arrows
112,019,853
Factor Arrows
11183,623
Factor Arrows
1116,693

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:

3, 11, 16693

We can check our work by multiplying all of the prime factors together: 3 x 11 x 11 x 11 x 16,693 = 66,655,149

This can also be written as 31 x 113 x 16,6931 = 66,655,149

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


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