22
6
1113213211
The next perfect number after 11 is 28.
The next prime number is 11
59 is the next number in this series.
The next number in the series is 67.
The next number in the series is 13112221.
3411
67
the answer is 1
17
11 comes next.
The number 7 comes next.
The next number in the series is 65. You'll notice that each succeeding number gets a progressive multiple of 3 added to the previous number in the series. The first number is 2, and the next number 5 is 2+(3x1). The next number 11 is 5+(3x2), and so forth. To obtain the number following 47, we simply add to 47 the 6th multiple of 3 (because 47 is the sixth number in the series), that is, 47+(3x6) = 65.
67
30!