1^81 is 1 multiplied by itself 81 times, which equals 1
3^4 is 3 multiplied by itself 4 times (3 x 3 x 3 x 3), which equals 81
6^4 is 6 multiplied by itself 4 times (6 x 6 x 6 x 6), which is 1296
9^2 is 9 multiplied by itself twice (9 x 9), which is 81
27^3 is 27 multiplied by itself 3 times (27 x 27 x 27), which is 19683.
Answer: 3^4 and 9^2