What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

24; 42

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

14; 32

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

25; 85

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

66; 44

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

16; 76

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

21; 56

What is the Greatest Common Factor (the largest number that can divide into both numbers without a remainder) of:

45; 105