Here is a list showing the month and a Number for each month.
January 713
February 823
March 531
April 542
May 351
June 462
July 471
August 683
Decode the logic and find the number for September = ?
January 713
February 823
March 531
April 542
May 351
June 462
July 471
August 683
Decode the logic and find the number for September = ?