The greatest common factor is 18.
The greatest common factor of 36 and 54 is 18.
The GCF is 3.
The greatest common factor of 18 and 21 is 3.
The greatest common factor of 15 and 18 is three.
Since 17 is a prime number, the greatest common factor of 17, 18, and 20 is 1.
18
The GCF is 1.
The GCF is 1.
The GCF is 1.
The greatest common factor is 18.
The GCF is 1.
The greatest common factor of 18 and 55 is 1.
The greatest common factor of 39 and 18 is definitely 3.
Since 18 is a factor of 90 and it is the largest factor of itself, the greatest common factor of 18 and 90 is 18.Since 18 is a factor of 90, it is automatically the GCF.
The Greatest Common Factor of 40 and 18 is 2.
The greatest common factor of 18 , 7 = 1