Q: What are the prime factors of the number 664,065,304?

 A: 2, 7, 101, 137, 857

Why are those the prime factors of the number 664,065,304?

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 664,065,304

664,065,304
Factor Arrows
2332,032,652
Factor Arrows
2166,016,326
Factor Arrows
283,008,163
Factor Arrows
711,858,309
Factor Arrows
101117,409
Factor Arrows
137857

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, 7, 101, 137, 857

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 7 x 101 x 137 x 857 = 664,065,304

This can also be written as 23 x 71 x 1011 x 1371 x 8571 = 664,065,304

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


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