Question

how can i get the gcf of # 42 because i am getting confused

Answer 1

you cannot have the greatest common factor of one number. math does not waste words so
"greatest common factor" means
1) a factor
2) that is common
3) to two or more numbers or terms

Answer 2

also of course the "greatest one"

Answer 3

i see that earlier you had 16 and 42. is this what you need the greatest common factor of?

Answer 4

so what is the answer