This article has been updated from the original post, which appeared on March 14, 2013. March 14, when written as 3/14, represents the first three digits of pi (Ï€), the ratio of the circumference of a ...
Whether using 3.141 or the record-holding 314 trillion–digit calculation announced in December 2025 by Storage Review Lab director Kevin O'Brien, every representation of π is still an approximation.