Select 20 unique numbers from 1 to 1000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 339,482,811,302,457,792,865,426,328,139,265,835,270,144 (~3.3948281130246E+23 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 825,928,413,359,200,936,068,378,495,921,491,067,231,039,828,194,340,028,547,072 (~8.259284133592E+41 million trillion)
If order does not matter (e.g. most lottery numbers): 339,482,811,302,457,792,865,426,328,139,265,835,270,144 (~3.3948281130246E+23 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 825,928,413,359,200,936,068,378,495,921,491,067,231,039,828,194,340,028,547,072 (~8.259284133592E+41 million trillion)
