1031
(another Prime Pages' Curiosity)
Prime Curios!
Curios: Curios Search:
 
Participate:
We will be upgrading the server this Monday and Tuesday (May 12-13) and this site
will be down at times on those day (and possibly the next).   (caldwell@utm.edu)

The largest proven repunit prime has 1031 digits.

1031 = 2*3*5 + 7*11*13. [Capelle]

Halloween falls on "ten thirty-one" (10/31) each year. It is a cross-quarter date, approximately midway between an equinox and a solstice.

The final bid for an Erdös number on eBay (April 30, 2004) was $1031. Note that the bidding was for an Erdös number of 5. [McCranie]

The smaller of the smallest twin emirps. Their reversals are also twins. [Punches]

(There is one curio for this number that has not yet been approved by an editor.)




Prime Curios! © 1999-2008 (all rights reserved)