1, 3, 9, 27, 81.
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.
The factors of 81 are: 1, 3, 9, 27, 81.
There are infinitely many different choices of 3 numbers that add up to 81. 50 + 30 + 1 = 81 40 + 40 + 1 = 81 10 + 11 + 60 = 81 etc.
1, 3, 9, 27, 81
83
1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.
1, 3, 9, 27, 81.
9. The square root of 81 is 9.
1 3 9 27 81
3,
The HCF of both numbers is 1
1 and 9
1 and 3
Just the number 1.
The hcf is 9
The numbers are 1 and 3 with no remainders
1, 3, 9, 27, 81