1 3 9 27 81
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.
3,
1 3 9 27 81
243, 81, 9, 3
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.
1, 3, 9, 27, 81.
9. The square root of 81 is 9.
3,
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.
Oh, dude, you want me to add up all those odd numbers? Fine, fine, I'll humor you. So, the sum of the first 81 odd numbers is 81 squared, which is 6561. There you go, math whiz.
The HCF of both numbers is 1
1 and 9
All Factors of 729:1, 3, 9, 27, 81, 243, 729