Select 18 unique numbers from 1 to 1000
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 133,912,430,159,729,302,247,457,656,673,226,719,232 (~1.3391243015973E+20 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 857,357,421,724,788,130,416,299,209,139,819,897,312,196,167,729,152,000 (~8.5735742172479E+35 million trillion)
If order does not matter (e.g. most lottery numbers): 133,912,430,159,729,302,247,457,656,673,226,719,232 (~1.3391243015973E+20 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 857,357,421,724,788,130,416,299,209,139,819,897,312,196,167,729,152,000 (~8.5735742172479E+35 million trillion)