Select 20 unique numbers from 2 to 80
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 2,651,487,106,659,130,880 (~2.7 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 6,450,808,306,445,468,478,814,869,672,268,136,448 (~6.4508083064455E+18 million trillion)
If order does not matter (e.g. most lottery numbers): 2,651,487,106,659,130,880 (~2.7 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 6,450,808,306,445,468,478,814,869,672,268,136,448 (~6.4508083064455E+18 million trillion)