Q: What are the prime factors of the number 222,473,900?

 A: 2, 5, 11, 17, 11897

Why are those the prime factors of the number 222,473,900?

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 222,473,900

222,473,900
Factor Arrows
2111,236,950
Factor Arrows
255,618,475
Factor Arrows
511,123,695
Factor Arrows
52,224,739
Factor Arrows
11202,249
Factor Arrows
1711,897

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, 11, 17, 11897

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 5 x 11 x 17 x 11,897 = 222,473,900

This can also be written as 22 x 52 x 111 x 171 x 11,8971 = 222,473,900

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


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