what is the smallest integer x such that 2 x + 2 is divisible by 33 , 44 , 55 , and 666 ?
33 = 3 * 11 44 = 2 * 2 * 11 55 = 5 * 11 666 = 2 * 3 * 3 * 37 so 2 x + 2 = 2 * 2 * 3 * 3 * 5 * 11 * 37 = 73260 , and x = ( 73260 - 2 ) / 2 = 36629 , which is option d .
divide(subtract(lcm(lcm(lcm(33, 44), 55), 666), 2), 2)