Different tasks, same characters
Python, 88 87 bytes

lambda n:[a for a in range(11*n)if any(a%b&lt;1for b in range(2,a))][:3*n:3]#1,,,=====bd++
lambda n:[[a*b for b in range(1,n+1)]for a in range(1,n+1)]#,,::ybaaa(*i%n&lt; =====2)d33f
f=lambda n,a=1,b=1:a&lt;n and f(n,b,a+b)or n==a#2eerrrfo::((**iii11[[aannn+     ]]y))%33gg
f=lambda n,a=1:a&lt;=n and a**a+f(n,a+1)#::ooeeiii]]      y))bbbgg,,rrrra((11[[nnnnf==2%33


Didn't put too much effort into sharing characters or the golfs themselves, this will almost surely be beat.