Select 7 unique numbers from 1 to 400
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 308,364,541,201,200 (~308.4 trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,554,157,287,654,048,000 (~1.6 million trillion)
If order does not matter (e.g. most lottery numbers): 308,364,541,201,200 (~308.4 trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,554,157,287,654,048,000 (~1.6 million trillion)