Q: What are the prime factors of the number 22,431,200?

 A: 2, 5, 11, 2549

Why are those the prime factors of the number 22,431,200?

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 22,431,200

22,431,200
Factor Arrows
211,215,600
Factor Arrows
25,607,800
Factor Arrows
22,803,900
Factor Arrows
21,401,950
Factor Arrows
2700,975
Factor Arrows
5140,195
Factor Arrows
528,039
Factor Arrows
112,549

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, 5, 11, 2549

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 5 x 11 x 2,549 = 22,431,200

This can also be written as 25 x 52 x 111 x 2,5491 = 22,431,200

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


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