[tex]4 \times 0 = 0[/tex]
[tex]4 \times 1 = 4[/tex]
[tex]4 \times 2 = 8[/tex]
[tex]4 \times 3 = 12[/tex]
[tex]4 \times 4 = 16[/tex]
[tex]4 \times 5 = 20[/tex]
[tex]4 \times 6 = 24[/tex]
[tex]4 \times 7 = 28[/tex]
[tex]M_{4}<30=\left \{ 0,4,8,12,16,20,24,28\right \}[/tex]
