Q: What are the prime factors of the number 222,213,220?

 A: 2, 5, 191, 58171

Why are those the prime factors of the number 222,213,220?

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 222,213,220

222,213,220
Factor Arrows
2111,106,610
Factor Arrows
255,553,305
Factor Arrows
511,110,661
Factor Arrows
19158,171

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, 191, 58171

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 191 x 58,171 = 222,213,220

This can also be written as 22 x 51 x 1911 x 58,1711 = 222,213,220

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


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