Select the set in which the numbers are related in the same way as are the numbers of the following sets. (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 / subtracting / multiplying etc, to 13 can be performed. Breaking down 13 into 1 and 3 then performing mathematical operations on 1 and 3 is not allowed)

(17, 35, 72)
(13, 27, 56)