<P> Between 1998 and 2000 , the distributed computing project PiHex used Bellard 's formula ( a modification of the BBP algorithm ) to compute the quadrillionth ( 10 th ) bit of π , which turned out to be 0 . In September 2010 , a Yahoo ! employee used the company 's Hadoop application on one thousand computers over a 23 - day period to compute 256 bits of π at the two - quadrillionth ( 2 × 10 th ) bit , which also happens to be zero . </P>
<P> Between 1998 and 2000 , the distributed computing project PiHex used Bellard 's formula ( a modification of the BBP algorithm ) to compute the quadrillionth ( 10 th ) bit of π , which turned out to be 0 . In September 2010 , a Yahoo ! employee used the company 's Hadoop application on one thousand computers over a 23 - day period to compute 256 bits of π at the two - quadrillionth ( 2 × 10 th ) bit , which also happens to be zero . </P>
as of today pi has been calculated out to how many digits
as of today pi has been calculated out to how many digits
the two - quadrillionth ( 2 × 10 th ) bit
the two - quadrillionth ( 2 × 10 th ) bit