There is an infinity of pairs of numbers with a GCF of 4. If p and P are two distinct primes, then 4p and 4P are such a pair. There are other ways to construct such pairs, but one infinity should suffice.
You need at least two numbers to find a GCF.
the GCF of 4 3 5 is 1
The greatest common factor of the numbers 11 and 19 is 1.
The factor pairs (not the GCF) of 16 are (16,1)(8,2)(4,4)
4 and any multiple of 4 have a GCF of 4.
(4,8) and (8,12) both have a GCF of 4.
There is an infinity of pairs of numbers with a GCF of 4. If p and P are two distinct primes, then 4p and 4P are such a pair. There are other ways to construct such pairs, but one infinity should suffice.
Two pairs of numbers with a GCF of 26 are 26 & 52 or 52 & 78
The gcf of 24 and 36 is 12
There can be only one GCF, not a pair. GCF(4, 6) = 2
Co-prime numbers
The GCF of the given numbers is 8
7 and any multiple of 7 Any multiples of 7 that differ by 7
The two that are relatively prime.
13 and 26, for example.
21 and 28