gcf of 121 and 16, gcf of 121 and 64, gcf of 121 and 132, gcf of 121 and 100, gcf of 121 and 144, gcf of 121 and 11, gcf of 121 and 143, gcf of 121 and 81, gcf of 121 and 36
gcf of 121 and 16. There are any references about gcf of 121 and 16 in here. you can look below.