Select 20 unique numbers from 1 to 99
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 428,786,696,323,047,817,216 (~428.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,043,196,014,563,770,062,868,299,000,747,732,762,624 (~1.0431960145638E+21 million trillion)
If order does not matter (e.g. most lottery numbers): 428,786,696,323,047,817,216 (~428.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,043,196,014,563,770,062,868,299,000,747,732,762,624 (~1.0431960145638E+21 million trillion)
