Răspuns:
a=1,2,4(c.m.m.d.c)
b=1,7(c.mcm.d.c)
Explicație pas cu pas:
24=1,2,4,6,12,24
40=1,2,4,5,8,10,20,40
35=1,5,7,35
42=1,2,3,6,7,14,21,42
