Q: What are the prime factors of the number 2,222,688?

 A: 2, 3, 13, 137

Why are those the prime factors of the number 2,222,688?

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 2,222,688

2,222,688
Factor Arrows
21,111,344
Factor Arrows
2555,672
Factor Arrows
2277,836
Factor Arrows
2138,918
Factor Arrows
269,459
Factor Arrows
323,153
Factor Arrows
131,781
Factor Arrows
13137

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, 13, 137

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 13 x 13 x 137 = 2,222,688

This can also be written as 25 x 31 x 132 x 1371 = 2,222,688

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


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