The greatest number that exactly divides 105,1001 and 2436 is -

A 3

B 7

C 11

D 21

Solution

Correct Answer: Option B

এখানে , 105)1001(9
                         945
                    --------
                         56)105(1
                                 56
                          ._____________
                                  49)56(1
                                       49
                          ______________
                                      7)49(7
                                         49
                           ______________-
                                          0

আবার ,7)2436(348
                  21
            ______________
                     33
                     28
            ____________
                     56
                     56
               ________________
                     0
অএতব ,105,1001,2436 এর গ সা গু =7

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