Sa se afle c.m.m.m.c. al numerelor ;
a) 828 =2² ×3² ×23
1426=2 ×23 ×31
c.m.m.m.c =2² ×3² ×23×31 =25668
b) 660=2² × 3 ×5 ×11
1800=2³ ×3² ×5²
5400 =2³×3³×5²
c.m.m.m.c =2³ ×3³ ×5²×11 =59400
c) 810=2×3⁴×5
7200=2⁵×3²×5²
4200=2³×3×5²×7
c.m.m.m.c =2⁵ ×3⁴ ×5²×7 =453600