Q: What are the prime factors of the number 647,663,736?

 A: 2, 3, 26985989

Why are those the prime factors of the number 647,663,736?

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 647,663,736

647,663,736
Factor Arrows
2323,831,868
Factor Arrows
2161,915,934
Factor Arrows
280,957,967
Factor Arrows
326,985,989

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, 26985989

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 26,985,989 = 647,663,736

This can also be written as 23 x 31 x 26,985,9891 = 647,663,736

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


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