The GCF of 90 and 180 is 90.
No, but it's always an even number.
Always even.
No, it is never even.
Addition of two odd numbers will always give an even number.
The GCF will, yes.
The GCF is, yes.
It is: 1
The GCF of two even numbers is always even.
The sum of two odd numbers is always even.
The GCF of any two odd numbers is always odd. The GCF of any two even numbers is always even. The GCF of an odd and an even number is always odd.
You need at least two numbers to find a GCF.
4 and 8
9 and 126
The GCF of 90 and 180 is 90.
You need at least two numbers to find a GCF.
479 and 958 have a GCF of 479.