Q: What are the prime factors of the number 809,280?

 A: 2, 3, 5, 281

Why are those the prime factors of the number 809,280?

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 809,280

809,280
Factor Arrows
2404,640
Factor Arrows
2202,320
Factor Arrows
2101,160
Factor Arrows
250,580
Factor Arrows
225,290
Factor Arrows
212,645
Factor Arrows
34,215
Factor Arrows
31,405
Factor Arrows
5281

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, 281

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 281 = 809,280

This can also be written as 26 x 32 x 51 x 2811 = 809,280

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 809,280:


Ask a Question