World Record Cullen Mega Prime

This item is off topic but WAY too cool not to post…

I just received notice from John Michael Blazek of the PrimeGrid project that one of my systems — running BOINC software and participating in the PrimeGrid project — has discovered a Cullen Mega Prime Number!

The number is 1905090 digits long and is recorded on Chris Caldwell’s The Largest Known Primes Database website as: 1582173 * 2^632858+1.

As of the date of this posting [2009-Apr-20] this finding is the largest Cullen Prime Number and ranks at number 15 on the Top 20 prime numbers list. The number is 1905090 digits long.

Congratulations to the PrimeGrid team on this success! And, thank you for allowing me to participate in your innovative project.

Preliminary information from the PrimeGrid website is as follows…

World Record Cullen Mega Prime found
2009-04-20 19:00 UTC
A PrimeGrid participant has discovered a World Record Cullen Mega Prime in the Cullen Prime Search. This is a very special and rare find. It is only the 15th Cullen prime known. It is also a top 15 prime and the largest found by LLR. Additionally, it is PrimeGrid’s largest prime to date. Stay tuned for more details.

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