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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Alka gupta
Lagrange Theorem says " The order of every subgroup of a finite group is a divisor of the order of the group". but converse of this theorem is not ture..... converse is " if m is divisor of order of group G then it is not necessary that group have m order subgroup" this converse statement holds only for cyclic groups.