what is the least common multiple of 12,15 , 18,27
"factors of 12 = 2 * 2 * 3 factors of 27 = 3 * 3 * 3 factors of 15 = 3 * 5 factors of 18 = 2 * 3 * 3 thus the l . c . m is 2 * 3 * 2 * 3 * * 1 * 5 * 3 = 540 the answer is b"
multiply(add(12,15, const_1), const_2)