what is the smallest number which when diminished by 18 , is divisible 8 , 14 , 26 and 28 ?
"required number = ( lcm of 8 , 14 , 26 and 28 ) + 18 = 728 + 18 = 746 option a"
add(lcm(lcm(8, 14), lcm(26, 28)), 18)