Here's the abstract that Krishna and I put together and emailed to the Purdue Math Club:

Hi All,

I'm delighted to announce about the seminar we're having in our club this Thursday. Please find below the details.

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Title: How To Use Free Software To Find Probable Primes With Over 10,000 Digits

Subtitle: You Can Use Your CPU Downtime To Find A Probable Prime In About 3 Days

WHO: Purdue Alumnus Matt Stath at The Purdue Math Club
WHO'S INVITED: Anybody with an interest in Math or Computers
WHAT: A Seminar
WHERE: REC 113
WHEN: Thursday, March 21, 2013 at 6 pm
WHY: Because You Can!
HOW: With Equations & Software

Matt Stath will demonstrate with free software how to make The Top 5000 Primes List and The Probable Primes List.  Formulas will be included.  This will include gigantic primes of over 10,000 digits, arithmetic progressions of primes, The Repunit Project, and more!

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Regards,
Krishna