Q: What are the prime factors of the number 200,221,208?

 A: 2, 11, 37, 61493

Why are those the prime factors of the number 200,221,208?

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 200,221,208

200,221,208
Factor Arrows
2100,110,604
Factor Arrows
250,055,302
Factor Arrows
225,027,651
Factor Arrows
112,275,241
Factor Arrows
3761,493

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, 11, 37, 61493

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 11 x 37 x 61,493 = 200,221,208

This can also be written as 23 x 111 x 371 x 61,4931 = 200,221,208

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


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