Which is the next number in the pattern?

1, 3, 9, 27, 81,____

Sure looks we are multiplying a number by 3 to get the next one ...

243

To find the pattern and determine the next number, let's look at the sequence and observe the relationship between the numbers.

The given pattern is a sequence of numbers where each number is obtained by multiplying the previous number by 3.

Starting with 1:
1 * 3 = 3
3 * 3 = 9
9 * 3 = 27
27 * 3 = 81

To find the next number, we can apply the same relationship:
81 * 3 = 243.

Therefore, the next number in the pattern is 243.