or
or
Find the missing number in the series 3, 6, 18, 72, 360, _
The missing number in the series 3, 6, 18, 72, 360, _ is 2160.
This is a geometric sequence with a common ratio of 3. To find the next number, we can use the following formula:
a_n = a_1 r^{n - 1}
where:
In this case, we have:
Substituting these values into the formula, we get:
a_{6} = 3 \cdot 3^{6 - 1} = 2160
Therefore, the missing number in the series is 2160.
