Select 7 unique numbers from 2017 to 2018
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 128
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 128
If order does not matter (e.g. most lottery numbers): 128
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 128