Q: What are the prime factors of the number 206,502,165?

 A: 3, 5, 19, 23, 10501

Why are those the prime factors of the number 206,502,165?

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 206,502,165

206,502,165
Factor Arrows
368,834,055
Factor Arrows
322,944,685
Factor Arrows
54,588,937
Factor Arrows
19241,523
Factor Arrows
2310,501

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, 5, 19, 23, 10501

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 19 x 23 x 10,501 = 206,502,165

This can also be written as 32 x 51 x 191 x 231 x 10,5011 = 206,502,165

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


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