What is the remainder when 47¹⁰⁰ is divided by 100

47^2 = 2209, so 2209^50 /100 = 9^50/100, by Euler totient theorem, totient for 100 is 40 so 9^10/100 = (10-1)^10/100 = -10+1/100 = -9/100. Therefore remainder will be 91