Largest prime found yet by 15k search

2004-05-10, 05:24

Congrats!

7*2^372897-1 is prime
Proven by L32
http://primes.utm.edu/primes/page.php?id=70211
Is over a 112000 digits long!

Just as we approach the one year anniversary of the 15k search!
5/19/03

Kosmaj · 2004-05-11, 03:04

Well, thanks! It's the second in a row, after n=363929

Of course 7 is not "15k" (unless k=1/2 in integer division!) but I got presieved values from Thomas. With the new LLR one can go through low values of n quickly. Will be even faster if the program is not wasting time on vainly guesses of the FFT lenght... But still, we cannot complain.

2004-05-10, 05:24	#1
TTn 23·59 Posts	Largest prime found yet by 15k search Congrats! 72^372897-1 is prime Proven by L32 http://primes.utm.edu/primes/page.php?id=70211 Is over a 112000 digits long! Just as we approach the one year anniversary of the 15k search! 5/19/03 Last fiddled with by Kosmaj on 2004-05-11 at 03:14*

2004-05-11, 03:04	#2
Kosmaj Nov 2003 2×1,811 Posts	Well, thanks! It's the second in a row, after n=363929 Of course 7 is not "15k" (unless k=1/2 in integer division!) but I got presieved values from Thomas. With the new LLR one can go through low values of n quickly. Will be even faster if the program is not wasting time on vainly guesses of the FFT lenght... But still, we cannot complain. Last fiddled with by Kosmaj on 2004-05-11 at 03:06

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