Question

How do you find the GCF of `8a^2` and 11?

Answer 1

`1`

Explanation:

See greatest common divisor on Wikipedia for more explanation.
Step 1:
Factor both into prime factors.

`8a^2=2*2*2*a*a`
`11=11`

Step 2:
Find common factors. The only common factor is 1 though.

Step 3:
Multiply the common factors.

`gcd(8a^2, 11)=1`