100 rem Semiprime
110 cls
120 for i = 0 to 64
130   print using "##  ";i semiprime$(i)
140 next i
150 end
160 sub semiprime$(n)
170 a = 2
180 c = 0
190 do while c < 3 and n > 1
200   if n mod a = 0 then n = n/a : c = c+1 else a = a+1
210 loop
220 if c = 2 then semiprime$ = "True" else semiprime$ = "False"
230 end sub