Q: What are the prime factors of the number 22,172,872?

 A: 2, 2771609

Why are those the prime factors of the number 22,172,872?

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 22,172,872

22,172,872
Factor Arrows
211,086,436
Factor Arrows
25,543,218
Factor Arrows
22,771,609

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, 2771609

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2,771,609 = 22,172,872

This can also be written as 23 x 2,771,6091 = 22,172,872

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


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