Senary

Senary is a type of number system that uses six symbols instead of ten symbols (like the decimal system). In the senary system, the symbols are the numbers 0, 1, 2, 3, 4, and 5. When writing a number in the senary system, these six symbols are used to represent different numbers. For example, if you wanted to write the number 20 in the senary system, you would write it as 22, which means 2 lots of 6 (6+6) and 2 left over (2). That way, we can write any number in the senary system just by using six symbols.