Q: What are the prime factors of the number 233,145?

 A: 3, 5, 11, 157

Why are those the prime factors of the number 233,145?

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 233,145

233,145
Factor Arrows
377,715
Factor Arrows
325,905
Factor Arrows
38,635
Factor Arrows
51,727
Factor Arrows
11157

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, 11, 157

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 5 x 11 x 157 = 233,145

This can also be written as 33 x 51 x 111 x 1571 = 233,145

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 233,145:


Ask a Question