Select 100 unique numbers from 100 to 1
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 13,261,955,589,475,319,736,268,418,689,673,631,890,358,581,594,651,044,262,814,423,629,762,622,978,908,463,941,274,152,442,613,087,952,858,898,872,136,067,567,378,812,550,712,449,469,520,616,543,192,381,147,576,411,925,699,679,319,052,081,280,283,914,577,962,336,256 (~1.3261955589475E+181 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 13,261,955,589,475,319,736,268,418,689,673,631,890,358,581,594,651,044,262,814,423,629,762,622,978,908,463,941,274,152,442,613,087,952,858,898,872,136,067,567,378,812,550,712,449,469,520,616,543,192,381,147,576,411,925,699,679,319,052,081,280,283,914,577,962,336,256 (~1.3261955589475E+181 million trillion)
If order does not matter (e.g. most lottery numbers): 13,261,955,589,475,319,736,268,418,689,673,631,890,358,581,594,651,044,262,814,423,629,762,622,978,908,463,941,274,152,442,613,087,952,858,898,872,136,067,567,378,812,550,712,449,469,520,616,543,192,381,147,576,411,925,699,679,319,052,081,280,283,914,577,962,336,256 (~1.3261955589475E+181 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 13,261,955,589,475,319,736,268,418,689,673,631,890,358,581,594,651,044,262,814,423,629,762,622,978,908,463,941,274,152,442,613,087,952,858,898,872,136,067,567,378,812,550,712,449,469,520,616,543,192,381,147,576,411,925,699,679,319,052,081,280,283,914,577,962,336,256 (~1.3261955589475E+181 million trillion)
