division ladder for 12,16,28 and the gcf of all them
The GCF of 10 and 15 is 5.
The GCF is 3.
The GCF is 1.
The GCF of 18 and 57 is 3.
5
The GCF of 27 and 30 is 3.
5 |10,15, |_________2,3The GCF of 10 and 15 is 5.
either list factors, do factor trees, or division ladder
The GCF is 3.
155,3105,2The GCF is 5.The GCF of 10 and 15 is 5.
Don't bother. Since 25 is a factor of 75, it is automatically the GCF.