Q: What are the prime factors of the number 15,533?

 A: 7, 317

Why are those the prime factors of the number 15,533?

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 15,533

15,533
Factor Arrows
72,219
Factor Arrows
7317

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:

7, 317

We can check our work by multiplying all of the prime factors together: 7 x 7 x 317 = 15,533

This can also be written as 72 x 3171 = 15,533

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 15,533:


Ask a Question