Q: What are the prime factors of the number 855,136?

 A: 2, 26723

Why are those the prime factors of the number 855,136?

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 855,136

855,136
Factor Arrows
2427,568
Factor Arrows
2213,784
Factor Arrows
2106,892
Factor Arrows
253,446
Factor Arrows
226,723

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, 26723

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 26,723 = 855,136

This can also be written as 25 x 26,7231 = 855,136

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


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