Q: What are the prime factors of the number 33,636,438?

 A: 2, 3, 11, 17, 3331

Why are those the prime factors of the number 33,636,438?

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 33,636,438

33,636,438
Factor Arrows
216,818,219
Factor Arrows
35,606,073
Factor Arrows
31,868,691
Factor Arrows
3622,897
Factor Arrows
1156,627
Factor Arrows
173,331

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, 11, 17, 3331

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 3 x 11 x 17 x 3,331 = 33,636,438

This can also be written as 21 x 33 x 111 x 171 x 3,3311 = 33,636,438

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


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