The greatest common factor (GCF) of two numbers is the largest number that divides both numbers without leaving a remainder. To find the GCF of 126 and 189, we can use the prime factorization method. Prime factorizing 126 gives 2 x 3^2 x 7, and prime factorizing 189 gives 3^3 x 7. The common factors between the two numbers are 3 and 7. Therefore, the GCF of 126 and 189 is 21.
The GCF is 126.
The multiples of 9, 14 and 21 are infinite, starting with: 126, 252, 378, 504, 630, 756, 882 +126 . . .
You need at least two numbers to find a GCF.
The GCF is 27.
The GCF is 27.
The GCF is 63.
The GCF is 9.
126 + 63=189
The GCF of 63, 84 and 126 is 21. The GCF of 6384 and 126 is 42.
The GCF is 27.
The GCF is 14.