242.
5*6*8 = 240
240+2 =242

If the numbers are 10,12,16 then as the numbers have common 
divisor 2,dive by 2 and follow the above process.

If the numbers have common divisor then divide and continue 
with multiplication and addition remainder.

find the LCM of 5,6,8
5*3*8 = 120
Given 120 + remainder 2
120 + 2 =122

if 120/5,6, and 8,
the remainder will get
2.