7776,1296,216,36,6,? | series Logical reasoning | WBCS

Complete the series by finding the missing number from the given options.

7776,1296,216,36,6,?

(a) 1
(b) 0
(c) 5
(d) 2

Correct Answer: a

1*6= 6

6*6 = 36

36*6 = 216

216*6 = 1296

1296*6 = 7776