Select 7 unique numbers from 01 to 99
        Total possible combinations (ways)
        
If order does not matter (e.g. most lottery numbers): 14,887,031,544 (~15 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 75,030,638,981,760 (~75 trillion)
            
                If order does not matter (e.g. most lottery numbers): 14,887,031,544 (~15 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 75,030,638,981,760 (~75 trillion)



