document.write( "Question 398214: I've been taught that an irrational number is a number where the decimal neither terminates or repeats. Is there a standard for how many decimals should be looked at before it is deemed irrational? Or, is there a rule I can follow to more easily figure that out? \r
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Algebra.Com's Answer #282301 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
I don't know of a standard.
\n" ); document.write( "Some numbers, such as pi, are thought to be irrational and have been checked to 2 million digits (maybe more), but there's no proof that it won't start to repeat at some point.
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\n" ); document.write( "What is it you want to figure out?
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\n" ); document.write( "I checked on google, found this:
\n" ); document.write( "The record for the number of digits of pi calculated is held by a 55-year-old Japanese programmer. A program writte by Shieguru Kondo calculated 5 trillion digits of pi, taking 90 days.
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