General Studies · Classification

Three of the following numbers are alike in a certain manner and one is different. Select the number that is different from the rest. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13 - Operations on 13 such as adding/deleting /multiplying etc. to 13 can be performed. Break ing down 13 into 1 and 3 and then performing mathematical operation s on 1 and 3 is not allowed)