Select 20 unique numbers from 100 to 999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 40,399,105,851,182,334,559,162,408,630,392,096,555,008 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,287,065,753,882,138,392,992,624,011,205,291,059,183,699,916,823,375,904,768 (~)
If order does not matter (e.g. most lottery numbers): 40,399,105,851,182,334,559,162,408,630,392,096,555,008 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,287,065,753,882,138,392,992,624,011,205,291,059,183,699,916,823,375,904,768 (~)