I use my spare computer time for prime number research.  I occasionally am asked about these primes.  Some people seem to think there is a complete list (or formula) somewhere of every prime.  There isn't.  The one's I've found were never known to be primes until I discovered them.

July 2001 Update:  I found my 5th titanic prime number!

My discoveries are (rankings at time of discovery are shown):

Oct 6, 1999:  501*2^176392+1  (the 48th largest known prime with 53,102 digits).

July 30, 2001: 505*2^150714+1 (the 556th largest known prime with 45,373 digits).

Oct. 29, 2000: 501*2^122919+1 (the 440th largest known prime with 37,006 digits).

Aug 2, 1999:  501*2^102983+1 (the 255th largest known prime with 31,004 digits).

Sep 1, 2000:  505*2^100534+1 (the 591st largest known prime with 30,267 digits).

You can view my standings at:  The Prime Pages.

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