if 7 and 6 are factors of 60 n , what is the minimum value of n ?
"60 n / 7 * 6 should be integer = > 2 * 2 * 3 * 5 * n / 7 * 2 * 3 = 2 * 5 * n / 7 must be an integer for this to be true n must multiple of 7 , thus min of n = 7 hence c"
lcm(7, 6)