Q: What are the prime factors of the number 187,326,656?

 A: 2, 11, 266089

Why are those the prime factors of the number 187,326,656?

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 187,326,656

187,326,656
Factor Arrows
293,663,328
Factor Arrows
246,831,664
Factor Arrows
223,415,832
Factor Arrows
211,707,916
Factor Arrows
25,853,958
Factor Arrows
22,926,979
Factor Arrows
11266,089

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, 11, 266089

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 11 x 266,089 = 187,326,656

This can also be written as 26 x 111 x 266,0891 = 187,326,656

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


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