Q: What are the prime factors of the number 213,111,215?

 A: 5, 23, 83, 269

Why are those the prime factors of the number 213,111,215?

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 213,111,215

213,111,215
Factor Arrows
542,622,243
Factor Arrows
231,853,141
Factor Arrows
8322,327
Factor Arrows
83269

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:

5, 23, 83, 269

We can check our work by multiplying all of the prime factors together: 5 x 23 x 83 x 83 x 269 = 213,111,215

This can also be written as 51 x 231 x 832 x 2691 = 213,111,215

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


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