Q: What are the prime factors of the number 863,677,656?

 A: 2, 3, 17, 41507

Why are those the prime factors of the number 863,677,656?

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 863,677,656

863,677,656
Factor Arrows
2431,838,828
Factor Arrows
2215,919,414
Factor Arrows
2107,959,707
Factor Arrows
335,986,569
Factor Arrows
311,995,523
Factor Arrows
17705,619
Factor Arrows
1741,507

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, 17, 41507

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 17 x 17 x 41,507 = 863,677,656

This can also be written as 23 x 32 x 172 x 41,5071 = 863,677,656

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


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