Răspuns :
Multimea primilor 11 multiplii ai lui 3:
M1={0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30}
Multimea primilor 10 multiplii ai lui 5:
M2={0, 5, 10, 15, 20, 25, 30, 35, 40, 45}
M1 ∩ M2 = {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30} ∩ {0, 5, 10, 15, 20, 25, 30, 35, 40, 45}
M1 ∩ M2 = {0, 15, 30}
c.m.m.m.c. al numerelor 3 si 5 este 15
3=3
5=5
--------------------
(3, 5)=3·5=15
M1={0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30}
Multimea primilor 10 multiplii ai lui 5:
M2={0, 5, 10, 15, 20, 25, 30, 35, 40, 45}
M1 ∩ M2 = {0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30} ∩ {0, 5, 10, 15, 20, 25, 30, 35, 40, 45}
M1 ∩ M2 = {0, 15, 30}
c.m.m.m.c. al numerelor 3 si 5 este 15
3=3
5=5
--------------------
(3, 5)=3·5=15
Explicație pas cu pas:
M3 = { 0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36 }
M5 = { 0 ,5 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 }
M3 Intersectat M5 = { 15, 30}