Răspuns :
M21= 21,42, 63, 84,
M18= 18,36, 54, 72, 90
M35= 35, 70
M19= 19, 38, 57, 76, 95
M18= 18,36, 54, 72, 90
M35= 35, 70
M19= 19, 38, 57, 76, 95
= 21,42, 63, 84,
= 18,36, 54, 72, 90
-= 35, 70
-= 19, 38, 57, 76, 95
= 18,36, 54, 72, 90
-= 35, 70
-= 19, 38, 57, 76, 95