Q: What are the prime factors of the number 33,116,391?

 A: 3, 7, 11, 17, 937

Why are those the prime factors of the number 33,116,391?

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 33,116,391

33,116,391
Factor Arrows
311,038,797
Factor Arrows
33,679,599
Factor Arrows
31,226,533
Factor Arrows
7175,219
Factor Arrows
1115,929
Factor Arrows
17937

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, 17, 937

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 7 x 11 x 17 x 937 = 33,116,391

This can also be written as 33 x 71 x 111 x 171 x 9371 = 33,116,391

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


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