1, 3, 9, 27, 81
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The hcf is 9
1, 2, 3, 6, 9, 18, 27, 54, 81 and 162.
no because 81 is an odd number. only even numbers are divisible by 2 evenly.
No, not evenly. 81 divided by 7 is 11 with remainder 4.
1 and 81 Those two numbers certainly divide into 81 though they are not the only numbers to do so.