Select 30 unique numbers from 1 to 20
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 1,073,741,824,000,000,021,350,953,343,814,199,148,544 (~1.073741824E+21 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,073,741,824,000,000,021,350,953,343,814,199,148,544 (~1.073741824E+21 million trillion)
If order does not matter (e.g. most lottery numbers): 1,073,741,824,000,000,021,350,953,343,814,199,148,544 (~1.073741824E+21 million trillion)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 1,073,741,824,000,000,021,350,953,343,814,199,148,544 (~1.073741824E+21 million trillion)