hcf = 15
lcm = 3510
270 = 2 x 33 x 5
195 = 3 x 5 x 13
hcf = 3 x 5 = 15
lcm = 2 x 33 x 5 x 13 = 3510
HCF(315, 195) = 15 LCM(315, 195) = 4095
They are 15 and 2145 respectively
Factors: 15 = 3 x 5, 18 = 2 x 3 x 3. The LCM of two numbers = their product divided by their HCF. In this instance the product is 270 and the HCF is 3 so the LCM is 90.
LCM is 20 and the hcf is 10
LCM of 3 and 195 is 195.
The LCM is: 270
HCF = 3... LCM = 18 !
HCF is 60 and the LCM is 360
The HCF is: 2The LCM is: 2,520
HCF is 48 and LCM is 576
hcf = 42, lcm = 84.
hcf is 1 and LCM is 35