It is 3^4.
81 can be written as 8.10 × 101 in exponential notation.
81 = 8.1 x 101
81 = 92 or 8.1 × 101
81 = 8.1 x 10^1
81 = 34
3❹ * 1 = 81
It can be written as 9^2.
81 = 8.1 × 101
The prime factorization of 81 is 3x3x3x3 or 34 in exponential form.
92
81
X1 = -81