Select 2 unique numbers from 4 to 91
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 3,828
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 7,656
If order does not matter (e.g. most lottery numbers): 3,828
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 7,656