# How Many 3 Combinations Using 1 2 3 And What Are They?

123, 132, 213, 231, 321, 312

6 combinations.
thanked the writer.
Laith Assaf commented
311 313 323 332 331 322 221 223 212 1 2 3 123 321 231 132 213 312 12 13 21 23 31 32 22 11 33 222 333 111 121 131 133 211 221 232 233 112 113 122 223. Every single combination with 1-3 digits.

The others answer are missing numbers for sure. Using the numbers 1 2 3 in a 3 number combination I have made this list there are 27combinations in total hope this helps someone this is how I would pick my bike combinations when I forgot the combo.

111, 211, 311
112, 212, 312
113, 213, 313
121, 221, 321
122, 222, 322
123, 223, 333
131, 231, 331
132, 232, 332
133, 233, 333

thanked the writer.
Gregg Johnstone commented
Error directly above: notice that 333 is repeated twice. The missing combination is -> 323. Note, also, that there are 27 different combinations (with repetition) which is 3^3.

311 313 323 332 331 322 221 223 212 1 2 3 123 321 231 132 213 312 12 13 21 23 31 32 22 11 33 222 333 111 121 131 133 211 221 232 233 112 113 122 223. Every single combination with 1-3 digits.

thanked the writer.
Laith Assaf commented
Oh, I thought it meant EVERY possible combination.
Laith Assaf commented
In that case, the answer to everyone would be n^n