Select 15 unique numbers from 46 to 90
        Total possible combinations (ways)
        
If order does not matter (e.g. most lottery numbers): 344,867,425,584 (~345 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 450,974,292,794,344,233,500,672 (~451 sextillion)
            
                If order does not matter (e.g. most lottery numbers): 344,867,425,584 (~345 billion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 450,974,292,794,344,233,500,672 (~451 sextillion)



