Q: What are the prime factors of the number 810,220?

 A: 2, 5, 17, 2383

Why are those the prime factors of the number 810,220?

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 810,220

810,220
Factor Arrows
2405,110
Factor Arrows
2202,555
Factor Arrows
540,511
Factor Arrows
172,383

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, 5, 17, 2383

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 17 x 2,383 = 810,220

This can also be written as 22 x 51 x 171 x 2,3831 = 810,220

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 810,220:


Ask a Question