Q: What are the prime factors of the number 22,110,144?

 A: 2, 3, 7, 16451

Why are those the prime factors of the number 22,110,144?

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 22,110,144

22,110,144
Factor Arrows
211,055,072
Factor Arrows
25,527,536
Factor Arrows
22,763,768
Factor Arrows
21,381,884
Factor Arrows
2690,942
Factor Arrows
2345,471
Factor Arrows
3115,157
Factor Arrows
716,451

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, 7, 16451

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 3 x 7 x 16,451 = 22,110,144

This can also be written as 26 x 31 x 71 x 16,4511 = 22,110,144

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


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