The positive integer factors of 81 are:
1, 3, 9, 27, 81
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81 has these five factors: 1 3 9 27 81.
All the factors of 81 and 135 are: 1, 3, 9, 27, 45, 81, and 135.
The factors of 81 are 1, 3, 9, 27, and 81 .
The factors of 81 are 1, 3, 9, 27, and 81
9, 3, 27. that's it.