Q: What are the prime factors of the number 18,199,575?

 A: 3, 5, 47, 1721

Why are those the prime factors of the number 18,199,575?

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 18,199,575

18,199,575
Factor Arrows
36,066,525
Factor Arrows
32,022,175
Factor Arrows
5404,435
Factor Arrows
580,887
Factor Arrows
471,721

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, 5, 47, 1721

We can check our work by multiplying all of the prime factors together: 3 x 3 x 5 x 5 x 47 x 1,721 = 18,199,575

This can also be written as 32 x 52 x 471 x 1,7211 = 18,199,575

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 18,199,575:


Ask a Question