Q: What are the prime factors of the number 22,062,656?

 A: 2, 7, 11, 37

Why are those the prime factors of the number 22,062,656?

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 22,062,656

22,062,656
Factor Arrows
211,031,328
Factor Arrows
25,515,664
Factor Arrows
22,757,832
Factor Arrows
21,378,916
Factor Arrows
2689,458
Factor Arrows
2344,729
Factor Arrows
749,247
Factor Arrows
114,477
Factor Arrows
11407
Factor Arrows
1137

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, 7, 11, 37

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 7 x 11 x 11 x 11 x 37 = 22,062,656

This can also be written as 26 x 71 x 113 x 371 = 22,062,656

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


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