IF U CAN AMSWER THIS QUESTION , THEN U MUST HAVE IQ MORE THAN EINSTEIN.. TRY YOUR LUCK...

 Solve this: Puzzle.☝
Let us see who can do it. 

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

⚡Discover the logic and find the number for September = ?
Challenge is O P E N for all GENIUS
Please support yöür answer by logic , it's compulsory ...

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ANSWER IS GIVEN IN FOLLOWING LINK

https://www.google.co.in/url?q=http://googleweblight.com/%3Flite_url%3Dhttp://www.whatsappguru.in/whatsapp-puzzles-here-is-a-list-showing-the-month-and-a-number-for-each-month-find-the-number-for-september/%26ei%3DvqwY_1u6%26lc%3Den-IN%26s%3D1%26m%3D235%26ts%3D1452528245%26sig%3DALL1Aj4r8BqwC5xX37tJiS3JsGrsIU8DBA&sa=U&ved=0ahUKEwj6mJOwkaLKAhUTGY4KHd6hCK4QFggRMAA&sig2=l55jmsl65DxhAIKevPA8dA&usg=AFQjCNEr9ONNBppR-j5fq0Y_CgnUnJUDDA