Q: What are the prime factors of the number 33,123,420?

 A: 2, 3, 5, 11, 16729

Why are those the prime factors of the number 33,123,420?

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 33,123,420

33,123,420
Factor Arrows
216,561,710
Factor Arrows
28,280,855
Factor Arrows
32,760,285
Factor Arrows
3920,095
Factor Arrows
5184,019
Factor Arrows
1116,729

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, 5, 11, 16729

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 3 x 5 x 11 x 16,729 = 33,123,420

This can also be written as 22 x 32 x 51 x 111 x 16,7291 = 33,123,420

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


More Examples

Here are some more numbers to try:

Try the factor calculator

Explore more about the number 33,123,420:


Ask a Question