Q: What are the prime factors of the number 2,667,816?

 A: 2, 3, 23, 179

Why are those the prime factors of the number 2,667,816?

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 2,667,816

2,667,816
Factor Arrows
21,333,908
Factor Arrows
2666,954
Factor Arrows
2333,477
Factor Arrows
3111,159
Factor Arrows
337,053
Factor Arrows
312,351
Factor Arrows
34,117
Factor Arrows
23179

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, 23, 179

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 3 x 23 x 179 = 2,667,816

This can also be written as 23 x 34 x 231 x 1791 = 2,667,816

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


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