1, 3, 9, 27, 81
1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
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81, as it is the highest factor of 81 (81 and 1) and is also a factor of 162 (81 and 2)
The Greatest Common Factor of 81, 108, 117: 9
The greatest common factor for the numbers 27 and 81 are 27.
Factors are just numbers 81 can be divided by. The whole number factors are 1, 3, 9, 27, and 81
The factors of 81 are 1, 3, 9, 27, 81. For them to be common, they need to be compared to another set of factors.