Granulated Cement Filling
If you mean 18, 27 and 63 then the GCF is 9
If you mean 300 and 450 then the GCF is 150
If you mean 45 and 18 then the gcf is 9
If you mean 40 and 80 then the GCF is 40
If you mean 25, 100 and 50 then the GCF is 25
If you mean: 18, 36 and 45 then the GCF is 9
If you mean 18, 36 and 45 then the gcf is 9
If you mean 15, 45 and 75 then the GCF is 15
If you mean 18, 27 and 63 then the GCF is 9
If you mean 55, 77 and 143 then the GCF is 11
If you mean: 15, 30 and 45 then the GCF is 15
The GCF is 27.