Q: What are the prime factors of the number 64,204,245?

 A: 3, 5, 7, 7549

Why are those the prime factors of the number 64,204,245?

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 64,204,245

64,204,245
Factor Arrows
321,401,415
Factor Arrows
37,133,805
Factor Arrows
32,377,935
Factor Arrows
3792,645
Factor Arrows
3264,215
Factor Arrows
552,843
Factor Arrows
77,549

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:

3, 5, 7, 7549

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 3 x 5 x 7 x 7,549 = 64,204,245

This can also be written as 35 x 51 x 71 x 7,5491 = 64,204,245

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


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