Q: What are the prime factors of the number 33,102,420?

 A: 2, 3, 5, 13, 31, 37

Why are those the prime factors of the number 33,102,420?

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 33,102,420

33,102,420
Factor Arrows
216,551,210
Factor Arrows
28,275,605
Factor Arrows
32,758,535
Factor Arrows
5551,707
Factor Arrows
1342,439
Factor Arrows
311,369
Factor Arrows
3737

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, 13, 31, 37

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 5 x 13 x 31 x 37 x 37 = 33,102,420

This can also be written as 22 x 31 x 51 x 131 x 311 x 372 = 33,102,420

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 33,102,420:


Ask a Question