Well, darling, eight-ninths of 81 is simply 72. You just multiply 81 by 8/9 and you've got your answer. So, there you have it, 72 is the magic number.
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1, 3, 9, 27, 81. 1 x 81 = 81, 3 x 27 = 81, 9 x 9 = 81.
The factors of 81 are 1, 3, 9, 27, and 81.
81% is 81/100 as a fraction in its simplest form
81 has 5 factors: 1, 3, 9, 27, and 81.
1,2,3,4,6,8,9,12,18,24,36,72 factor of 72 1,3,9,27,and 81 is factor of 81