Răspuns:
130:n=C1 r4
258:n=C2 r6
322:n=C3 r7
D=ÎxC+R
C1n+4=130->>C1n=130-4=126->>C1x63=126->>C1=126/63=2
C2n+6=258->>C2n=258-6=252->>C2x63=252->>C2=252/63=4
C3n+7=322->>C3n=322-7=315->>C3x63=315->>C3=5
C.m.m.d.c.(126,252,315)=3x3x7=9x7=63
126=2x3x3x7
252=2x2x3x3x7
315=5x3x3x7
Sper să te ajute!... Măcar 1%....