Answer:
Mathematics. In mathematics, 1 is also the only number for which these special facts are true. ... Any number n, other than 0, divided by itself always equals 1: n / n = 1, example: 7 / 7 = 1. 1 cannot be divided with any other number so that the result is a natural number.
Explanation:
Hexadecimal: 116
Binary: 12
Octal: 18
Ternary: 13