Select 15 unique numbers from 1000 to 9999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 155,621,120,603,241,443,655,115,928,166,455,387,130,792,247,296 (~1.5562112060324E+29 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 203,501,750,532,295,529,201,585,022,655,584,596,530,251,267,118,387,731,365,888 (~2.035017505323E+41 million trillion)
If order does not matter (e.g. most lottery numbers): 155,621,120,603,241,443,655,115,928,166,455,387,130,792,247,296 (~1.5562112060324E+29 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 203,501,750,532,295,529,201,585,022,655,584,596,530,251,267,118,387,731,365,888 (~2.035017505323E+41 million trillion)