Q: What are the prime factors of the number 85,536?

 A: 2, 3, 11

Why are those the prime factors of the number 85,536?

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 85,536

85,536
Factor Arrows
242,768
Factor Arrows
221,384
Factor Arrows
210,692
Factor Arrows
25,346
Factor Arrows
22,673
Factor Arrows
3891
Factor Arrows
3297
Factor Arrows
399
Factor Arrows
333
Factor Arrows
311

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

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 3 x 11 = 85,536

This can also be written as 25 x 35 x 111 = 85,536

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 85,536:


Ask a Question