Grangol (short for "grand googol") is a number equal to a power tower of 100 tens topped with a 100. It can be defined in Hyper-E Notation as E100#100 = EEE...EEE100 (100 E's) = 1010...10100 (100 tens). The term was coined by Sbiis Saibian. Grangol is comparable to 10 tetrated to 101, using hyper-operators. Aarex Tiaokhiao calls this number powergol.