Find the Common Factor in 4y+4: Step-by-Step Expression Analysis

To find the common factor of the expression $4y+4$, we need to factor each term. The expression can be rewritten as:

$4\cdot y + 4\cdot 1$

The number 4 is common in both terms, as we can see: $\orange4\cdot y + \orange4\cdot 1$ .

Hence, the common factor is $4$.