Q: What are the prime factors of the number 22,377,216?

 A: 2, 3, 29137

Why are those the prime factors of the number 22,377,216?

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 22,377,216

22,377,216
Factor Arrows
211,188,608
Factor Arrows
25,594,304
Factor Arrows
22,797,152
Factor Arrows
21,398,576
Factor Arrows
2699,288
Factor Arrows
2349,644
Factor Arrows
2174,822
Factor Arrows
287,411
Factor Arrows
329,137

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, 3, 29137

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 2 x 2 x 3 x 29,137 = 22,377,216

This can also be written as 28 x 31 x 29,1371 = 22,377,216

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


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