Răspuns:
1. a) 18
b) 8,12,24
c) 0,7,14,21,28,35,49
d) 33,44,55,66
e) 17,19,23,29,31,37
f) 6,8,9,10,12,14,15,16,18
2. a) 124,350,528,342,260
b) 147,225,528,342,111
c) 124,350,528,342,260
d) 350,225,260
e) 225,342
3. a) 450,455
b) 459
4. a)712,714,716,718,710
b) 711,714,717
