2
2
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
The GCF is 2.
2 :)x This is how you can work it out: 18: 1,2,3,6,9,18 (These are the numbers that 18 and 28 go into.) 28: 1,2,4,7,14,28 So the highest common factor of 18 and 28 is 2. Hope it helps :)
The GCF is 4.
The GCF is 2.
The greatest common factor of 12, 18, and 28 is 2.The prime factorization of 12 is 2*2*3The prime factorization of 18 is 2*3*3The prime factorization of 28 is 2*2*7So the greatest common factor of the set is 2.
4 is a factor of 28. 4 is a common factor of 28 and 32.