The GCF of 9 and 11 is 1.
The factors of 9 are 1, 3, 9.
The factors of 11 are 1, 11.
The GCF of 9 and 11 = 1.
Has to be 1 cuz 11 is prime
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11 is a prime number, meaning its only factors are 1 and itself. So, the greatest common factor of 9 and 11 is 1.
The greatest common factor of 9 , 8 = 1
The greatest common factor of 63, 81, and 99 is 9.The prime factorization of 63 is 7*9.The prime factorization of 81 is 9*9.The prime factorization of 99 is 11*9.Thus, the greatest of the common factors of 9.
The greatest common factor of 5 and 9 is 1.
3 is the greatest common factor of 9 and 12.