Multiples of the number at the bottom of each column.
No, not the green one.
That and the red one are additional information.
L/R D-Pad to operate.
open window 640,512
a=0
repeat
c=peek("port1")
if and(c,32)>0 right=1
if right=1 R=R+1
if R>2 R=2
if R=2 right=0
if and(c,32)=0 R=0
if and(c,128)>0 left=1
if left=1 L=L+1
if L>2 L=2
if L=2 left=0
if and(c,128)=0 L=0
if right=1 then
a=a+12
z=0
clear window
endif
if left=1 then
a=a-12
z=0
clear window
endif
if a<0 a=0
for x=1+a to 12+a
z=z+1
row=0
y=0
for y=1 to 1200
if frac(x/y)=0 then
row=row+1
setrgb 1,256,256,256
text z*53.5-53.5,row*15,str$(y)
endif
next y
setrgb 1,0,256,0
text z*53.5-53.5,(row+1)*15,str$(row)
setrgb 1,256,0,0
if row<3 text z*53.5-53.5,(row+2)*15,"prime"
if frac(row/2)<>0 text z*53.5-53.5,(row+2)*15,"sq"
next x
until (1=0)