Its GCF can only be 1 because 23 is a Prime number and its LCM is 23*12 = 276
The GCF is 6.
The GCF is 4.
The GCF is 3.
It can be. 69 is the GCF of 138 and 207.
The LCM is: 36
LCM = 12
The GCF of 16 and 23 is 1. The LCM is their product: 368.
The GCF is 3.
The GCF is 3.
36
It is: 84
420