Răspuns :
n = 6a +4 n + 2 = 6(a+1) ⇒ 6 divide (n+2)
n = 8b +6 n+2 =8(b+1) ⇒ 8 divide (n+2)
daca n+2 = 48 n = 46 46 = 6·7 +4 = 8·5 + 6
daca n+2 = 96 n = 94 94 = 6·15 + 4 = 8·11+6
n = 8b +6 n+2 =8(b+1) ⇒ 8 divide (n+2)
daca n+2 = 48 n = 46 46 = 6·7 +4 = 8·5 + 6
daca n+2 = 96 n = 94 94 = 6·15 + 4 = 8·11+6