The least number plus the 207 must be divisible by 17You have to find the least number which is greater than 207 and is divisible by 17Thus simply write down the multiples of 17 and select the first number greater than 207Then find out what number when added to 207, will give the least multiple of 17 greater than 207Multiples of 17 : 17,34,51,68,85,102,119,136,153,170,187,204,221,238,...The least number greater than 207 is 221Least number to add =221−207=14