Răspuns:
M 18={0; 18; 36; 54; ...; 18k}
M 34={0; 34; 68; 102; ...; 34k}
M 6={0; 6; 12; 18; ...; 6k}
M 23={0; 23; 46; 69; ...; 23K}
M18=0; 18; 36; 54; 72; 90;36; 54; 72; 90; 108...
M34=0,34,68,102,136...
M6=6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96,102,108,114,120,126,132,138......
M23=23 : 23 ; 46 ; 69 ; 92 ; 115 ; 138 ; 161; 184;207.....
