Q: What are the prime factors of the number 222,231,620?

 A: 2, 5, 13, 37, 1777

Why are those the prime factors of the number 222,231,620?

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 222,231,620

222,231,620
Factor Arrows
2111,115,810
Factor Arrows
255,557,905
Factor Arrows
511,111,581
Factor Arrows
13854,737
Factor Arrows
1365,749
Factor Arrows
371,777

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, 13, 37, 1777

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 13 x 13 x 37 x 1,777 = 222,231,620

This can also be written as 22 x 51 x 132 x 371 x 1,7771 = 222,231,620

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


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