Select 20 unique numbers from 1 to 999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 332,693,155,076,408,379,361,847,125,306,710,805,184,512 (~3.3269315507641E+23 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 809,409,845,092,016,289,358,026,135,380,713,580,240,592,473,852,593,219,567,616 (~8.0940984509202E+41 million trillion)
If order does not matter (e.g. most lottery numbers): 332,693,155,076,408,379,361,847,125,306,710,805,184,512 (~3.3269315507641E+23 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 809,409,845,092,016,289,358,026,135,380,713,580,240,592,473,852,593,219,567,616 (~8.0940984509202E+41 million trillion)