Q: What are the prime factors of the number 217,536?

 A: 2, 3, 11, 103

Why are those the prime factors of the number 217,536?

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 217,536

217,536
Factor Arrows
2108,768
Factor Arrows
254,384
Factor Arrows
227,192
Factor Arrows
213,596
Factor Arrows
26,798
Factor Arrows
23,399
Factor Arrows
31,133
Factor Arrows
11103

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, 11, 103

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 11 x 103 = 217,536

This can also be written as 26 x 31 x 111 x 1031 = 217,536

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 217,536:


Ask a Question