Select 21 unique numbers from 1 to 101
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 2,577,824,781,465,942,491,136 (~2577.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 131,703,496,838,675,983,584,191,037,153,493,536,210,944 (~1.3170349683868E+23 million trillion)
If order does not matter (e.g. most lottery numbers): 2,577,824,781,465,942,491,136 (~2577.8 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 131,703,496,838,675,983,584,191,037,153,493,536,210,944 (~1.3170349683868E+23 million trillion)