You need at least two numbers to find a GCF.
The GCF is 1.
The GCF of two prime numbers is 1.
When you are trying to find the GCF of two numbers and one of the numbers is a multiple of the other, the GCF will be the smaller of the two numbers. The GCF of 3 and 9 is 3.
The GCF is: 1.
The GCF is 7.
To find a pair of numbers with a given GCF, take the GCF number and double it. The pair of numbers is the GCF, and two times the GCF. For instance, two numbers with a GCF of 3 are 3 and 6.
You need at least two numbers to find a GCF. If that's 16 and 66, the GCF is 2.
You don't; you need at least two numbers to find a GCF.
You need at least two numbers to find a GCF. If that's 72 and 96, the GCF is 24.
You need at least two numbers for a GCF.
No; two numbers can have only 1 GCF.