Răspuns:
32:2=16:2=8:2=4:2=2:2=1(numar prim)
27:3=9:3=3:3=1(numar prim)
170:2=85:5=17:17=1(numar prim)
450:2=225:3=75:3=25:5=5:5=1(numar prim)
1350:2=675:3=225:3=75:3=25:5=5:5=1(numar prim)
252:2=146:2=73:73=1(numar prim)
350:2=175:5=35:5=7:7=1(numar prim)
1800:2=900:2=450:2=225:3=75:3=25:3=5:5=1(numar prim).
SUCCES!