Select 4 unique numbers from 1111 to 6666
        Total possible combinations (ways)
        
If order does not matter (e.g. most lottery numbers): 39,661,451,808,165 (~40 trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 951,874,843,395,960 (~952 trillion)
            
                If order does not matter (e.g. most lottery numbers): 39,661,451,808,165 (~40 trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 951,874,843,395,960 (~952 trillion)



