Q: What are the prime factors of the number 222,564,500?

 A: 2, 5, 31, 83, 173

Why are those the prime factors of the number 222,564,500?

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 222,564,500

222,564,500
Factor Arrows
2111,282,250
Factor Arrows
255,641,125
Factor Arrows
511,128,225
Factor Arrows
52,225,645
Factor Arrows
5445,129
Factor Arrows
3114,359
Factor Arrows
83173

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, 31, 83, 173

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 5 x 31 x 83 x 173 = 222,564,500

This can also be written as 22 x 53 x 311 x 831 x 1731 = 222,564,500

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


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