What will be the next number in the sequence? 66, 36, 18, ... answer given in my book is 8 but how? Please explain. There does not seem any particular order of decrease.
Let's start from 66 when we multiply two digits of 66 we get 36 which the next in the sequence .Similarly multiplying the digits of 36 we get 18 .Again multiplying the digits of 18 we get 8 which is the desired answer