Q: What are the prime factors of the number 211,313,016?

 A: 2, 3, 41, 107, 223

Why are those the prime factors of the number 211,313,016?

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 211,313,016

211,313,016
Factor Arrows
2105,656,508
Factor Arrows
252,828,254
Factor Arrows
226,414,127
Factor Arrows
38,804,709
Factor Arrows
32,934,903
Factor Arrows
3978,301
Factor Arrows
4123,861
Factor Arrows
107223

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, 3, 41, 107, 223

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 3 x 3 x 41 x 107 x 223 = 211,313,016

This can also be written as 23 x 33 x 411 x 1071 x 2231 = 211,313,016

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


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