Răspuns :
Răspuns:
la 3 sunt: 6,9,12,15,18,21
la 5 sunt:10,15,20,25,30,35
la 8 sunt:16,24,32,40,48,56
la 10 sunt: 20,30,40,50,60,70
M3=0,3,6,9,12,15,
M5=0,5,10,15,20,25,
M8=0,8,16,24,32,40
M10=0,10,20,30,40,50
M5=0,5,10,15,20,25,
M8=0,8,16,24,32,40
M10=0,10,20,30,40,50