Q: What are the prime factors of the number 202,440?

 A: 2, 3, 5, 7, 241

Why are those the prime factors of the number 202,440?

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 202,440

202,440
Factor Arrows
2101,220
Factor Arrows
250,610
Factor Arrows
225,305
Factor Arrows
38,435
Factor Arrows
51,687
Factor Arrows
7241

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, 5, 7, 241

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 3 x 5 x 7 x 241 = 202,440

This can also be written as 23 x 31 x 51 x 71 x 2411 = 202,440

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 202,440:


Ask a Question