A factor = a number which can be divided into the given number with no remainder Yes. It's the only factor of 81 (apart from 9, 27 and 81 itself).
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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
Their greatest common factor is 27
The factors of 81 are 1, 3, 9, 27, and 81. There is no common factor for a single number; a common factor is a factor of two or more given numbers. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers. For example, 17 is the GCF of 34, 51, and 102 because it is the largest number that is a factor common to all three numbers.
81 27,3 9,3,3 3,3,3,3
The greatest common factor of 16 72 and 81 is 1.