Select 20 unique numbers from 1000 to 9000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 463,915,836,252,854,100,690,154,877,507,163,976,571,291,213,661,381,096,112,128 (~4.6391583625285E+41 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,128,661,769,644,513,999,302,541,458,564,633,245,243,347,978,121,995,638,558,265,700,357,773,795,000,320 (~1.1286617696445E+60 million trillion)
If order does not matter (e.g. most lottery numbers): 463,915,836,252,854,100,690,154,877,507,163,976,571,291,213,661,381,096,112,128 (~4.6391583625285E+41 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,128,661,769,644,513,999,302,541,458,564,633,245,243,347,978,121,995,638,558,265,700,357,773,795,000,320 (~1.1286617696445E+60 million trillion)