Q: What are the prime factors of the number 64,201,608?

 A: 2, 3, 19, 71, 661

Why are those the prime factors of the number 64,201,608?

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 64,201,608

64,201,608
Factor Arrows
232,100,804
Factor Arrows
216,050,402
Factor Arrows
28,025,201
Factor Arrows
32,675,067
Factor Arrows
3891,689
Factor Arrows
1946,931
Factor Arrows
71661

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, 19, 71, 661

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 19 x 71 x 661 = 64,201,608

This can also be written as 23 x 32 x 191 x 711 x 6611 = 64,201,608

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


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