Q: What are the prime factors of the number 33,513,249?

 A: 3, 7, 11, 109

Why are those the prime factors of the number 33,513,249?

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 33,513,249

33,513,249
Factor Arrows
311,171,083
Factor Arrows
71,595,869
Factor Arrows
11145,079
Factor Arrows
1113,189
Factor Arrows
111,199
Factor Arrows
11109

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, 7, 11, 109

We can check our work by multiplying all of the prime factors together: 3 x 7 x 11 x 11 x 11 x 11 x 109 = 33,513,249

This can also be written as 31 x 71 x 114 x 1091 = 33,513,249

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


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