The GCF is 1.
The GCF of 243, 256, and 343 is 1. 243 = 3^5 256 = 2^8 So the first two have a GCF of 1. Adding 343 = 7^3 to the list cannot increase the GCF so it must remain 1.
The GCF is 7.
The GCF is 9.
GCF(343, 512) = 1; the numbers are coprime.
The GCF (Greatest Common Factor) of 49 and 343 is 49. Since 49 is a factor of 343, it is automatically the GCF.
The GCF of 33 and 64 is 1
The GCF is 49.
The GCF is 1.
The GCF is 1.
The GCF is 1.
The GCF is 81.
The GCF is: 27