Q: What are the prime factors of the number 222,051,200?

 A: 2, 5, 7, 23, 431

Why are those the prime factors of the number 222,051,200?

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 222,051,200

222,051,200
Factor Arrows
2111,025,600
Factor Arrows
255,512,800
Factor Arrows
227,756,400
Factor Arrows
213,878,200
Factor Arrows
26,939,100
Factor Arrows
23,469,550
Factor Arrows
21,734,775
Factor Arrows
5346,955
Factor Arrows
569,391
Factor Arrows
79,913
Factor Arrows
23431

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, 7, 23, 431

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 2 x 5 x 5 x 7 x 23 x 431 = 222,051,200

This can also be written as 27 x 52 x 71 x 231 x 4311 = 222,051,200

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


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