Respuesta :

147 is not divisible by 3 so that will take out a and b and 2*6 is not 26 so it would be c

hope this helps
Oh I see where you made your mistake
THE FIRST STEP TO GCF IS FACTORING
Divide by 3
3(6y+7)(2y−7)
Factored just like that! No need for the Russian method!