Q: What are the prime factors of the number 18,426,080?

 A: 2, 5, 115163

Why are those the prime factors of the number 18,426,080?

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 18,426,080

18,426,080
Factor Arrows
29,213,040
Factor Arrows
24,606,520
Factor Arrows
22,303,260
Factor Arrows
21,151,630
Factor Arrows
2575,815
Factor Arrows
5115,163

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, 5, 115163

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 5 x 115,163 = 18,426,080

This can also be written as 25 x 51 x 115,1631 = 18,426,080

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 18,426,080:


Ask a Question