Q: What are the prime factors of the number 664,410,760?

 A: 2, 5, 13, 661, 1933

Why are those the prime factors of the number 664,410,760?

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 664,410,760

664,410,760
Factor Arrows
2332,205,380
Factor Arrows
2166,102,690
Factor Arrows
283,051,345
Factor Arrows
516,610,269
Factor Arrows
131,277,713
Factor Arrows
6611,933

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, 5, 13, 661, 1933

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 13 x 661 x 1,933 = 664,410,760

This can also be written as 23 x 51 x 131 x 6611 x 1,9331 = 664,410,760

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


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