It is: 3
The Greatest Common Factor of 14 and 21 is 7.
21=3x714=2x77 is the greatest common factor
The GCF is 3.
21 itself is the greatest common integral factor, since 21 X 2 = 42.
The greatest common factor of 18 and 21 is 3.
Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.
There is no Greatest Common Factor (GCF) for a single number. The Greatest Common Factor (GCF) is the largest factor common to two or more given numbers.
The greatest common factor of 21 and 77 is 7.
The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.
The greatest common factor of 21 and 75 is 3.
The greatest common factor of 21 and 162 is 3.
The greatest common factor of 21 and 322 is 7.
The greatest common factor of 21 and 175 is 7.
The Greatest Common Factor of 21, 9 is 3.
The Greatest Common Factor of 14 and 21 is 7.
The greatest common factor of 21 and 56 is 7.