Q: What are the prime factors of the number 181,104?

 A: 2, 3, 7, 11

Why are those the prime factors of the number 181,104?

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 181,104

181,104
Factor Arrows
290,552
Factor Arrows
245,276
Factor Arrows
222,638
Factor Arrows
211,319
Factor Arrows
33,773
Factor Arrows
7539
Factor Arrows
777
Factor Arrows
711

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, 7, 11

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 7 x 7 x 7 x 11 = 181,104

This can also be written as 24 x 31 x 73 x 111 = 181,104

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 181,104:


Ask a Question