Q: What are the prime factors of the number 816,656?

 A: 2, 43, 1187

Why are those the prime factors of the number 816,656?

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 816,656

816,656
Factor Arrows
2408,328
Factor Arrows
2204,164
Factor Arrows
2102,082
Factor Arrows
251,041
Factor Arrows
431,187

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, 43, 1187

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 43 x 1,187 = 816,656

This can also be written as 24 x 431 x 1,1871 = 816,656

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


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