The greatest common factor of 18 and 21 is 3.
The Greatest Common Factor of 9, 18, 21: 3
The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 21 are 1, 3, 7, and 21. The common factors are 1 and 3. Therefore, the least common factor (the smallest common factor) is 1. Factorizations: 18-3x3x2 21-7x3
The highest common factor of 21 and 18 is 3
The GCF of 3, 21, and 18 is 3.
1 and 3
It is: 3
You need at least two numbers to find a GCF.
The least common factor of any set of integers is 1.
The GCF is 3.
The least common factor of any set of integers is 1.
The Greatest Common Factor (GCF) is: 3