"What is the GCF of 16 and 32?" is the answer to your question.
Since 515 is a factor of 2060, it is automatically the GCF of this problem.
Since 44 is a factor of 132, it is automatically the GCF of this problem.
Since 33 is a factor of 363, it is automatically the GCF of this problem.
Since 63 is a factor of 441, it is automatically the GCF of this problem.
Since 15 is a factor of 180, it is automatically the GCF of this problem.
This is what I would write: "What is the GCF of 32 and 64?"
Since 4 is a factor of 12, it is automatically the GCF of this problem.
Since 49 is a factor of 3136, it is automatically the GCF of this problem.
what is the answer to this problem
Since 20 is a factor of 40, it is automatically the GCF of this problem.
Since 12 is a factor of 24, it is automatically the GCF of this problem.