General Intelligence · Classification

Three of the following four options are alike in a certain way and thus form a group. Which is the one that does NOT belong to that group? (Note: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. For example, operations on 13 such as adding, subtracting, or multiplying can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations is not allowed.)