Q: What are the prime factors of the number 16,416,135?

 A: 3, 5, 17, 23, 311

Why are those the prime factors of the number 16,416,135?

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 16,416,135

16,416,135
Factor Arrows
35,472,045
Factor Arrows
31,824,015
Factor Arrows
3608,005
Factor Arrows
5121,601
Factor Arrows
177,153
Factor Arrows
23311

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, 17, 23, 311

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 17 x 23 x 311 = 16,416,135

This can also be written as 33 x 51 x 171 x 231 x 3111 = 16,416,135

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


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