Select 15 unique numbers from 4000 to 6000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 23,953,137,445,840,723,626,270,669,247,545,868,288 (~2.3953137445841E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 31,322,903,871,106,901,798,750,746,830,531,391,551,928,994,365,440 (~3.1322903871107E+31 million trillion)
If order does not matter (e.g. most lottery numbers): 23,953,137,445,840,723,626,270,669,247,545,868,288 (~2.3953137445841E+19 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 31,322,903,871,106,901,798,750,746,830,531,391,551,928,994,365,440 (~3.1322903871107E+31 million trillion)