Select 18 unique numbers from 1 to 259
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 2,347,042,026,203,945,076,502,036,480 (~2347042026.2 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 15,026,640,154,806,705,481,701,864,289,277,216,605,339,648 (~1.5026640154807E+25 million trillion)
If order does not matter (e.g. most lottery numbers): 2,347,042,026,203,945,076,502,036,480 (~2347042026.2 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 15,026,640,154,806,705,481,701,864,289,277,216,605,339,648 (~1.5026640154807E+25 million trillion)