How many kilohms are there in a megohms?

There are 1,000 kilohms in a megohm. This is because "kilo" denotes a factor of 1,000, and "mega" denotes a factor of 1,000,000. Therefore, 1 megohm (1,000,000 ohms) is equivalent to 1,000 kilohms (1,000 x 1,000 ohms).