No.
Chat with our AI personalities
No - 3/81 = 0.037 recurring (that is, 0.037037037...)
Not always as for example 81 is divisible by 3 but not by 6
Techcially all numbers are divisible by 81, however many would result in a decimal answer. If you mean how many numbers are divisible by 81 and have an integer answer, then it is "all multiples of 81" - e.g 81 x 2, 81 x 3 etc...81, 162, 243 and keep adding 81 forever.
1, 3, 9, 27, 81
Both.