1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.
Just 3.
Divide both numbers by 9 (a factor of both 72 and 81) and you get 8/9
1
The numbers are co-prime so the only common factor is 1.
1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.
Just 3.
Yes, these numbers: 1, 3, 9, 27, 81.
16 and 81 are the only two.
You have to divide by 10. This is because there are 10millimetres in every cm. i.e. 81/10 gives you 8.1cm.
You add up the numbers, then divide by how many numbers you added. Here there are 4 numbers to add up: 81+83+87+85. Use a calculator or do longhand. Then divide the sum by 4 to get the average.
Divide both numbers by 9 (a factor of both 72 and 81) and you get 8/9
6.9877
27 and 81 are a possibility. Also numbers like 5 and 10, 20 and 40.
16, 81, 625
1
The greatest common factor of 81 and 27 is 27. You can only divide 27 by 1, 3, 9, and 27. You can only divide 81 by 1, 3, 9, 27, and 81. 27 is the biggest factor that both of the numbers have.