Q: What are the prime factors of the number 211,768,208?

 A: 2, 29, 229, 1993

Why are those the prime factors of the number 211,768,208?

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 211,768,208

211,768,208
Factor Arrows
2105,884,104
Factor Arrows
252,942,052
Factor Arrows
226,471,026
Factor Arrows
213,235,513
Factor Arrows
29456,397
Factor Arrows
2291,993

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, 29, 229, 1993

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 29 x 229 x 1,993 = 211,768,208

This can also be written as 24 x 291 x 2291 x 1,9931 = 211,768,208

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


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