Q: What are the prime factors of the number 64,351,188?

 A: 2, 3, 11, 17, 79

Why are those the prime factors of the number 64,351,188?

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 64,351,188

64,351,188
Factor Arrows
232,175,594
Factor Arrows
216,087,797
Factor Arrows
35,362,599
Factor Arrows
31,787,533
Factor Arrows
11162,503
Factor Arrows
1114,773
Factor Arrows
111,343
Factor Arrows
1779

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, 11, 17, 79

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 11 x 11 x 11 x 17 x 79 = 64,351,188

This can also be written as 22 x 32 x 113 x 171 x 791 = 64,351,188

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


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