Q: What are the prime factors of the number 298,809?

 A: 3, 7, 17, 31

Why are those the prime factors of the number 298,809?

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 298,809

298,809
Factor Arrows
399,603
Factor Arrows
333,201
Factor Arrows
311,067
Factor Arrows
33,689
Factor Arrows
7527
Factor Arrows
1731

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, 7, 17, 31

We can check our work by multiplying all of the prime factors together: 3 x 3 x 3 x 3 x 7 x 17 x 31 = 298,809

This can also be written as 34 x 71 x 171 x 311 = 298,809

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 298,809:


Ask a Question