The ternary numeral system (also called base-3) has three as its base. Analogous to a bit, a ternary digit is a trit (trinary digit). One trit is equivalent to log23 (about 1.58496) bits of information.
| ternary (base 3) | 13 | 23 | 103 | 113 | 123 | 203 | 213 | 223 | 1003 | 1013 |
| senary (base 6) | 16 | 26 | 36 | 46 | 56 | 106 | 116 | 126 | 136 | 146 |
The senary numeral system (also known as base-6 or heximal) has six as its base. It has been adopted independently by a small number of cultures. Like decimal, it is a semiprime, though being the product of the only two consecutive numbers that are both prime (2 and 3) it has a high degree of mathematical properties for its size. As six is a superior highly composite number, many of the arguments made in favor of the duodecimal system also apply to this base-6.
| senary (base 6) | 16 | 26 | 36 | 46 | 56 | 106 | 116 | 126 | 136 | 146 |
| ternary (base 3) | 13 | 23 | 103 | 113 | 123 | 203 | 213 | 223 | 1003 | 1013 |
| ternary (base 3) | 13 | 23 | 103 | 113 | 123 | 203 | 213 | 223 | 1003 | 1013 |
|---|---|---|---|---|---|---|---|---|---|---|
| senary (base 6) | 16 | 26 | 36 | 46 | 56 | 106 | 116 | 126 | 136 | 146 |