Select 2 unique numbers from 1000 to 1000000000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 499,999,000,500,499,520 (~500 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,998,001,000,999,040 (~1000 thousand trillion)
If order does not matter (e.g. most lottery numbers): 499,999,000,500,499,520 (~500 thousand trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 999,998,001,000,999,040 (~1000 thousand trillion)