Q: What are the prime factors of the number 216,763,107?

 A: 3, 11, 17, 47, 8221

Why are those the prime factors of the number 216,763,107?

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 216,763,107

216,763,107
Factor Arrows
372,254,369
Factor Arrows
116,568,579
Factor Arrows
17386,387
Factor Arrows
478,221

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:

3, 11, 17, 47, 8221

We can check our work by multiplying all of the prime factors together: 3 x 11 x 17 x 47 x 8,221 = 216,763,107

This can also be written as 31 x 111 x 171 x 471 x 8,2211 = 216,763,107

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


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