Q: What are the prime factors of the number 22,221,444?

 A: 2, 3, 7, 127, 2083

Why are those the prime factors of the number 22,221,444?

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 22,221,444

22,221,444
Factor Arrows
211,110,722
Factor Arrows
25,555,361
Factor Arrows
31,851,787
Factor Arrows
7264,541
Factor Arrows
1272,083

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, 127, 2083

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 7 x 127 x 2,083 = 22,221,444

This can also be written as 22 x 31 x 71 x 1271 x 2,0831 = 22,221,444

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


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