The Greatest Common Factor of 9, 18, 21: 3
The highest common factor is 7
the greatest common factor of 8 21 and 75 is 1.
The GCF is 3.
Look for the GCF. 7, 14 and 21 all have 7 as a common factor. Divide that out. 7x divided by 7 = x 21 divided by 7 = 3 14y divided by 7 = 2y 7x + 21 + 14y = 7(x + 3 + 2y)
21 is the largest factor of 21
The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.
Because 21 is a factor of 63. 21 is the greatest factor of 21. A larger number doesn't exist.
Aside from itself (21), the highest integer factor of 21 is 7.
The greatest common factor of 21 and 63 is 21.Since 21 is a factor of 63, it is automatically the GCF.
Since 21 is a factor of 147, it is automatically the GCF.
Since 21 is a factor of 105, it is automatically the GCF.
The Greatest Common Factor of 21, 63, 84: 21
The greatest common factor of 21 and 77 is 7.
Yes, 21 is a factor of 63. 63 = 3x21
The GCF is 21.
The common factor of 3 and 21 is 3. *