Select 15 unique numbers from 1 to 2000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 23,773,578,694,372,650,981,607,669,526,159,163,392 (~2.3773578694373E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 31,088,099,494,262,021,439,576,480,084,977,071,383,539,703,873,536 (~3.1088099494262E+31 million trillion)
If order does not matter (e.g. most lottery numbers): 23,773,578,694,372,650,981,607,669,526,159,163,392 (~2.3773578694373E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 31,088,099,494,262,021,439,576,480,084,977,071,383,539,703,873,536 (~3.1088099494262E+31 million trillion)