Select 2 unique numbers from 1 to 9999999999999999999999999999999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 49,999,999,999,999,996,042,109,072,147,741,062,289,896,281,101,175,367,271,448,576 (~5.0E+43 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,999,999,999,992,084,218,144,295,482,124,579,792,562,202,350,734,542,897,152 (~1.0E+44 million trillion)
If order does not matter (e.g. most lottery numbers): 49,999,999,999,999,996,042,109,072,147,741,062,289,896,281,101,175,367,271,448,576 (~5.0E+43 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 99,999,999,999,999,992,084,218,144,295,482,124,579,792,562,202,350,734,542,897,152 (~1.0E+44 million trillion)