Q: What are the prime factors of the number 256,256,441?

 A: 7, 29, 67, 83, 227

Why are those the prime factors of the number 256,256,441?

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 256,256,441

256,256,441
Factor Arrows
736,608,063
Factor Arrows
291,262,347
Factor Arrows
6718,841
Factor Arrows
83227

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:

7, 29, 67, 83, 227

We can check our work by multiplying all of the prime factors together: 7 x 29 x 67 x 83 x 227 = 256,256,441

This can also be written as 71 x 291 x 671 x 831 x 2271 = 256,256,441

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


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