The Greatest Common Factor of 12, 36, 21 is 3.
The greatest common factor of 36, 14, and 21 is ' 1 '.
The greatest common factor of 21, 36, and 60 is 3
The greatest common factor is 3
The greatest common factor of 36, 14, and 21 is ' 1 '.
3
The GCF of 21, 24, and 36 is 3.
the GCF is 3.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The factors of 21 are 1, 3, 7, and 21. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors they have in common are 1 and 3, the largest of which is 3, so 3 is the greatest common factor. Or, you can calculate the greatest common factor by looking at the prime factors. The prime factors of 21 are 3 and 7. The prime factors of 36 are 2, 2, 3, and 3. The prime factors they have in common are a single 3, so 3 is the greatest common factor.