Select 21 unique numbers from 1 to 80
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 10,100,903,263,463,352,320 (~10.1 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 516,064,664,515,637,346,078,928,053,431,384,932,352 (~5.1606466451564E+20 million trillion)
If order does not matter (e.g. most lottery numbers): 10,100,903,263,463,352,320 (~10.1 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 516,064,664,515,637,346,078,928,053,431,384,932,352 (~5.1606466451564E+20 million trillion)