Q: What are the prime factors of the number 64,325,556?

 A: 2, 3, 41, 73, 199

Why are those the prime factors of the number 64,325,556?

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 64,325,556

64,325,556
Factor Arrows
232,162,778
Factor Arrows
216,081,389
Factor Arrows
35,360,463
Factor Arrows
31,786,821
Factor Arrows
3595,607
Factor Arrows
4114,527
Factor Arrows
73199

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, 41, 73, 199

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 41 x 73 x 199 = 64,325,556

This can also be written as 22 x 33 x 411 x 731 x 1991 = 64,325,556

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


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