The Highest Common Factor of the two numbers is 6. 126/6 = 21 12/6 = 2
The GCF is 3.
the GCF of 6 and 21 is 3.
The GCF is 6.
The GCF is... 12
The GCF is 3.
The GCF is 6.
The GCF of the numbers 6, 12, and 30 is the number 6.
The GCF/HCF of 12 and 90 is 6.
I'm not sure exactly what you mean by "pair of no.12" There is no factor pair of 12 that has a GCF of 6. There is a pair of factors of 12 (6 and 12) that have a GCF of 6. There is a pair of numbers that add up to 12 (6 and 6) that have a GCF of 6. 6 and any multiple of 6 have a GCF of 6. Any multiples of 6 that differ by 6 have a GCF of 6.
The GCF is 6.
The GCF is 3.