The LCM of 81 and 51 is 34 x 17 = 1,377.
LCM(3, 17, 51) = 51
LCM of 81 and 3 is 81.
The LCM is 810.
The LCM is 2268.
The LCM is 1539.
The LCM is 162.
The two numbers are prime so their LCM is their product, which is 51.
The LCM of 6 and 81 is 162.
LCM of 81 and 375 is 10125.
The LCM of 81 and 216 is 648.
The LCM is 255.