HCF is the highest common factor of two or more numbers. HCF of 25 and 40 is 5.
4
The GCF is 4.
5=5x1 35=5x7 HCF=5
The HCF of 4 and 90 is 2.
5 (leaves you with 2, 4 and 7)
The HCF is 5.
The GCF of 12 and 20 is 4.
16 48 = 2^4 x 3 224 = 2^5 x 7 hcf = 2^4 = 16
hcf(5, 15) = 5 lcm(5, 15) = 15.
The GCF is 1.
The GCF is 5.