Q: What are the prime factors of the number 664,365,504?

 A: 2, 3, 11, 28597

Why are those the prime factors of the number 664,365,504?

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 664,365,504

664,365,504
Factor Arrows
2332,182,752
Factor Arrows
2166,091,376
Factor Arrows
283,045,688
Factor Arrows
241,522,844
Factor Arrows
220,761,422
Factor Arrows
210,380,711
Factor Arrows
33,460,237
Factor Arrows
11314,567
Factor Arrows
1128,597

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, 11, 28597

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 11 x 11 x 28,597 = 664,365,504

This can also be written as 26 x 31 x 112 x 28,5971 = 664,365,504

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


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