Q: What are the prime factors of the number 66,755,016?

 A: 2, 3, 23, 1493

Why are those the prime factors of the number 66,755,016?

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 66,755,016

66,755,016
Factor Arrows
233,377,508
Factor Arrows
216,688,754
Factor Arrows
28,344,377
Factor Arrows
32,781,459
Factor Arrows
3927,153
Factor Arrows
3309,051
Factor Arrows
3103,017
Factor Arrows
334,339
Factor Arrows
231,493

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, 23, 1493

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 23 x 1,493 = 66,755,016

This can also be written as 23 x 35 x 231 x 1,4931 = 66,755,016

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


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