The answer is 4 because 4 you can break it into 2 times 2 and 2 is prime so thats the prime #s of 4 and for 84 you can do 42 times 2 then for 42 2 times 21 and then three times 7 = 21 so your prime factors of 84 are 237and 2 and the prime numbers of 4 is 2 and 2 so is you line those #s up there is 2 2's in common sooo... 2 times 2 = 4 so the gcf of 4 and 84 is 4.
By : Olivia
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF of 20 and 84 is 4.
The GCF is 4.The GCF is 4.
The GCF of 84 and 92 is 4.4
The GCF is 4.
The greatest common factor (GCF) of 36, 84, 112, is 4.
GCF=4
The GCF is 4.