Q: What are the prime factors of the number 219,910?

 A: 2, 5, 21991

Why are those the prime factors of the number 219,910?

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 219,910

219,910
Factor Arrows
2109,955
Factor Arrows
521,991

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, 21991

We can check our work by multiplying all of the prime factors together: 2 x 5 x 21,991 = 219,910

This can also be written as 21 x 51 x 21,9911 = 219,910

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 219,910:


Ask a Question