Find the smallest three digits number which when divides 4180 and 5190, leaves the same remainder in both case.

101

           4180             5190

              ↓                  ↓     

     Difference = 1010

                           ↓

                      101×10

∴ 101 is the smallest three digits number, which when divides 4180 and 5190, leaves the same remainder in both case.