Q: What are the prime factors of the number 222,021,540?

 A: 2, 3, 5, 13, 31627

Why are those the prime factors of the number 222,021,540?

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 222,021,540

222,021,540
Factor Arrows
2111,010,770
Factor Arrows
255,505,385
Factor Arrows
318,501,795
Factor Arrows
36,167,265
Factor Arrows
32,055,755
Factor Arrows
5411,151
Factor Arrows
1331,627

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, 5, 13, 31627

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 3 x 5 x 13 x 31,627 = 222,021,540

This can also be written as 22 x 33 x 51 x 131 x 31,6271 = 222,021,540

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


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