The GCF is 1.
The GCF of 15 and 27 is 3. The GCF of 15, 20 and 25 is 5. The GCF of 15, 27, 15, 20 and 25 is 1.
The gcf of 16 and 20 is 4. The lcm of 16 and 20 is 80
The GCF is 5.
The GCF is 1.
The GCF is 5.
It is 5 because: 35-1,5,7,35 20-1,2,4,5,10,20 & 15-1,3,5,15
The GCF of 15 and 20 is 5.15/20 = 3/4
The GCF is 2. The LCM is 240.
The GCF of 20 and 40 is 20 The GCF of 15 and 30 is 15 The GCF of 15, 20, 30 and 40 is 5.
The LCM of 15 and 20 is 60. The GCF is 5.
The GCF and LCM of 16 and 20 are 4 and 80, respectively.
The GCF for 20 and 27 is 1.