Question

Inpartind un nr natural la 8,obtinem catul egal cu restul.aflati toate solutile

Answer 1

18%8=2 rest 2 36%8=4 rest 4

Answer 2

n=8c + r =  8r +r = 9r      r∈{1,2,3,,4,5,6,7} ⇒n∈{9,18,27,36,45,54,63}