Yes.
The greatest common factor of 52 and 81 is 1
19 is not a factor of 81. Factors of 81 are 1, 3, 9, 27, and 81
The common factor of 55 and 81 is 1.
The GCF of 53 and 81 is 1.
The GCF of 64 and 81 is 1. 64:1,3,4,8,16,32,64 81:1,3,9,27,81
The greatest common factor of 58 and 81 is 1.
1, 3, 9, 27, 81
The greatest common factor of 56 and 81 is 1.
The greatest common factor of 40 , 81 = 1
The greatest commmon factor of 81 and 67 is 1.
The gcf of 37 and 81 is 1 (their only common factor)
The least common factor of two numbers is the smallest positive integer that both numbers can be evenly divided by. In this case, the factors of 81 are 1, 3, 9, 27, and 81, while the factors of 243 are 1, 3, 9, 27, 81, and 243. The least common factor of 81 and 243 is 81, as it is the smallest factor that both numbers share.