Select 20 unique numbers from 1 to 395
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 2,154,721,509,333,119,933,251,285,885,648,896 (~2.1547215093331E+15 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 5,242,226,287,117,948,103,202,350,652,339,834,279,123,787,634,966,528 (~5.2422262871179E+33 million trillion)
If order does not matter (e.g. most lottery numbers): 2,154,721,509,333,119,933,251,285,885,648,896 (~2.1547215093331E+15 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 5,242,226,287,117,948,103,202,350,652,339,834,279,123,787,634,966,528 (~5.2422262871179E+33 million trillion)