Select 155 unique numbers from 100 to 400
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 163,709,887,501,690,433,394,003,047,009,414,692,247,536,466,684,912,599,323,481,257,773,944,575,364,977,360,629,661,696 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): inf (~0 )
If order does not matter (e.g. most lottery numbers): 163,709,887,501,690,433,394,003,047,009,414,692,247,536,466,684,912,599,323,481,257,773,944,575,364,977,360,629,661,696 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): inf (~0 )