Select 20 unique numbers from 1 to 7
        Total possible combinations (ways)
        
If order does not matter (e.g. most lottery numbers): 230,230 (~230 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 79,792,266,297,612,001 (~80 quadrillion)
            
                If order does not matter (e.g. most lottery numbers): 230,230 (~230 thousand)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 79,792,266,297,612,001 (~80 quadrillion)



