I assume that by HCF you mean highest common factor. I also assume that "C is divisible by e" means c/e is an integer. In this case, since e is a factor of c, and the fighest factor of itself, e is the HCF.
I assume that by HCF you mean highest common factor. I also assume that "C is divisible by e" means c/e is an integer. In this case, since e is a factor of c, and the fighest factor of itself, e is the HCF.
