Q: What are the prime factors of the number 66,767,274?

 A: 2, 3, 7, 173, 1021

Why are those the prime factors of the number 66,767,274?

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 66,767,274

66,767,274
Factor Arrows
233,383,637
Factor Arrows
311,127,879
Factor Arrows
33,709,293
Factor Arrows
31,236,431
Factor Arrows
7176,633
Factor Arrows
1731,021

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, 173, 1021

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 7 x 173 x 1,021 = 66,767,274

This can also be written as 21 x 33 x 71 x 1731 x 1,0211 = 66,767,274

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


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