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
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The common factors of 72 and 81 are: 1, 3, and 9
72 out of 81 is 88.89%.
GCD: 27 LCM: 162 All common factors of 81 and 54 are all multiples of their LCM.
The word "GREATEST" is a superlative adjective and that means there can be only one.GCF(72, 81) = 9.
The GCF is 3.