
Math General Math Forum  For general math related discussion and news 
 LinkBack  Thread Tools  Display Modes 
March 20th, 2018, 07:53 AM  #1 
Newbie Joined: Mar 2018 From: texas Posts: 1 Thanks: 0  Origin of proof of irrationality of square root of two
What is the first known accepted proof of the irrationality of the square root of two or the n root of any prime preferably one that is attributed to someone?

March 20th, 2018, 08:06 AM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,923 Thanks: 1122 Math Focus: Elementary mathematics and beyond  
March 20th, 2018, 08:37 AM  #3 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,108 Thanks: 1001 
Greg, I saw at that site that a poor demented soul named Ronald Watkins calculated it to 10 trillion digits in June 2016... Using 8 digits per inch: 10,000,000,000 / (5280*12*8 ) = 19728.535353.... So the resulting number would be close to 20,000 miles long 
March 20th, 2018, 09:16 AM  #4 
Senior Member Joined: Jun 2015 From: England Posts: 891 Thanks: 269  

Tags 
irrationality, origin, proof, root, square 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
proof of Irrationality of e  zhenzhang  Math  2  March 10th, 2015 03:47 AM 
Square origin and axis?  Phazon  Algebra  2  June 7th, 2011 03:54 PM 
Nth Root Irrationality Proof  jstarks4444  Number Theory  1  May 5th, 2011 03:18 PM 
Uniqueness of Square Root proof  jstarks4444  Number Theory  2  November 16th, 2010 12:19 PM 
proof of square root results real numbers  dekaskas  Algebra  2  September 17th, 2008 07:40 AM 