The series alternates between two patterns: one where numbers are multiplied by 3 and then reduced (18 to 27 to 36) and another where numbers are multiplied by 4 and then reduced (81 to 72 to 63). Following this pattern, the next number after 36 (from the first sequence) would be 45 (36 multiplied by 1.25), and after 63 (from the second sequence), the next number would be 54 (63 reduced by 9). Thus, the next number in the series is 45.
11 comes next.
It is: 4554
0.01215
A series is a set of partial sums of sequences of numbers. A single number, such as 135, does cannot define a series.
17 cause it is the next prime number
57
10
One number does not make a sequence (nor a series).
11 comes next.
The number 7 comes next.
There is no series of number: just one very large number!
10
mcmlx
It is: 4554
A single number cannot define a sequence, even less a series.
The next number is the sequence 236175969, 48, 12 is 236175861.
The series seems to be "add 3," so the next number in the series would be 12 followed by 15.