Select 2 unique numbers from 41 to 45
        Total possible combinations (ways)
        
If order does not matter (e.g. most lottery numbers): 10
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 20
            
                If order does not matter (e.g. most lottery numbers): 10
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 20



