Q: What are the prime factors of the number 647,644,072?

 A: 2, 80955509

Why are those the prime factors of the number 647,644,072?

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 647,644,072

647,644,072
Factor Arrows
2323,822,036
Factor Arrows
2161,911,018
Factor Arrows
280,955,509

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, 80955509

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 80,955,509 = 647,644,072

This can also be written as 23 x 80,955,5091 = 647,644,072

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


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