human
Identify factors of algebraic expressions Tom and Katie are discussing factors

Tom says \( 4 \) is a common factor of \( 6 x \) and \( 9 y^{2} \)

Katie says \( y \) is a common factor of \( 6 x \) and \( 9 y^{2} \)

Who is correct? Only
Tom
gpt
Does not know how to identify common factors from algebraic terms