If you consider each set of 4 digits as a unique code regardless of numeric order (the code 0123 would be counted as a different code than 0132, 0213, 0231, 0312, 0321, 1023, 1032, 1203, 1230, 1230, etc.), there are 3,528 possible codes in the base 10 system containing the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
The answer would be 5,040.
The answer is actually 3024. 9*8*7*6= 3024
100,000 - Every number from 00000 to 99999.
Combination codes are actually permutations and notcombinations. The number of codes depends on how long (how many digits) the code is and that is not specified in the question. Also, the number of codes depends on whether or not the digits may be repeated - again, not specified in the question.There are 24 permutations that use each of the numbers once in a 4-digit code.There are infinitely many codes in which the numbers can be used repeatedly, each an infinite number of times!
The Codes was created in 1966.
Any 4 from 10 in any order = 10 x 9 x 8 x 7 = 5040
the repeated digits can lie in any of 3 positions:XXYZ,YXXZ, or YZXXTherefore, the number of different possible repeated digit combinations is 10×3=30 (there are 10 different possible digits).There are then 9 values left that Y could be, after the X's have their values, and 8 values left that Z could be, to ensure no unintended repeated numbers.This gives (10×3)×9×8=2160. There are therefore 2160 possible codes.
Codes in the Clouds was created in 2007.
Clash of the Codes was created in 1994.
The number of 3-letter codes that can be formed without repetition is equal to the number of choices for the first letter (4 letters), multiplied by the number of choices for the second letter (3 letters), multiplied by the number of choices for the third letter (2 letters). Therefore, the total number of 3-letter codes that can be formed is 4 x 3 x 2 = 24.
If you include 0000, ten thousand unique four digit codes are possible.
The number codes are to unlock clues on the website at the39clues.com
104 = 10000 if digits can be repeated, 5040 if not. The above answers assume a code can start with a 0. If not, 9000 if digits can be repeated and 4536 if not.
Building Codes Assistance Project was created in 1994.