Select 20 unique numbers from 20 to 80
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 6,236,646,703,759,396 (~6.2 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 15,173,150,289,864,456,438,673,633,898,921,984 (~1.5173150289864E+16 million trillion)
If order does not matter (e.g. most lottery numbers): 6,236,646,703,759,396 (~6.2 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 15,173,150,289,864,456,438,673,633,898,921,984 (~1.5173150289864E+16 million trillion)