The expression 3^6, or 3 to the 6^\text{th} power, means that we need to multiply 3 by itself 6 times.
3^6=3* 3* 3* 3* 3* 3
To calculate this, we can type either 3^6 or 3* 3* 3* 3 * 3* 3 in the calculator. Both expressions give us the same answer, but the first one is somewhat easier to type.