Select 20 unique numbers from 0000 to 9999
Total possible combinations (ways)
If order does not matter (e.g. most lottery numbers): 40,329,089,689,367,343,240,076,024,376,383,852,240,521,005,847,659,327,587,876,864 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,116,723,293,197,597,689,894,609,965,583,748,545,690,523,955,969,035,517,671,766,322,090,843,905,720,320 (~)
If order does not matter (e.g. most lottery numbers): 40,329,089,689,367,343,240,076,024,376,383,852,240,521,005,847,659,327,587,876,864 (~)
If order matters (e.g. pick3 numbers, permutations, lock combinations, pin-codes): 98,116,723,293,197,597,689,894,609,965,583,748,545,690,523,955,969,035,517,671,766,322,090,843,905,720,320 (~)
