Find the gcf of 20c+4

To find the greatest common factor (GCF) of the expression 20c+4, we need to factor out 20c+4.

The expression 20c+4 can be written as 4(5c+1).

Now, the GCF is the common factor that divides both 20c and 4. The common factor is 4.

Therefore, the GCF of 20c+4 is 4.