S/R Base 5 Primes in 2010 - Page 3

Joe O · 2010-08-08, 15:19

Quote:

Originally Posted by Lennart

51176 · 5^484669+1 is Prime

Lennart

Another prime for Lennart...his 11th this year for SR5!

Congrats!

Joe O · 2010-08-10, 21:23

http://primes.utm.edu/primes/page.php?id=94113

8644*5^493618+1 is Prime

Joe O · 2010-08-15, 20:45

Another prime! Congratulations to Rune on his 1st SR5 prime!

37328*5^504675+1

Joe O · 2010-08-25, 21:49

Congratulations to Stefano on his first S/R Base 5 prime!

341552*5^427478-1

Joe O · 2010-09-07, 14:31

Prime #13 for Lennart
261448*5^461217-1

Prime #2 for Rune
250216*5^460797-1

Congratulations to both of you!

Keep them coming.

Joe O · 2010-09-11, 21:14

Another prime for Lennart...his 14th this year for SR5!

170446*5^468081-1

Congrats!

ltd · 2010-10-11, 16:00

This time an announcement for myself. Looks like the smallest k of the whole project was finished:

254*5^911506-1 is prime

http://primes.utm.edu/primes/page.php?id=95347

Lets see what the officials have to say about it.

gd_barnes · 2010-10-12, 05:14

Congrats Lars on a monster top-100 prime!

For historical reference and accounting purposes both here and at CRUS for Riesel base 25, I should state here that this prime actually knocks out k=158750 for bases 5 and 25 because:

254*5^4-1 is prime
1270*5^3-1 is prime
6350*5^2-1 is prime
31750*5^1-1 is prime

-- and now since n must be >= 1 --
158750*5^911502-1 is prime

-- and finally for CRUS --
158750*25^455751-1 is prime

Congrats again! :-)

Gary

ltd · 2010-10-15, 04:05

Its a good month for me:

128552*5^5525537+1 is prime

http://primes.utm.edu/primes/page.php?id=95404

rogue · 2010-10-15, 12:36

Quote:

Originally Posted by ltd

Its a good month for me:

128552*5^5525537+1 is prime

http://primes.utm.edu/primes/page.php?id=95404

Oops. You meant 128552*5^525537+1

ltd · 2010-10-15, 13:27

Oops my fault. You are right.
But the wrong one would have been a real finding.

2010-08-10, 21:23	#24
Joe O Aug 2002 3×5²×7 Posts	Prime #12 For Lennart this year http://primes.utm.edu/primes/page.php?id=94113 8644*5^493618+1 is Prime

2010-08-15, 20:45	#25
Joe O Aug 2002 3·5²·7 Posts	Prime #1 for Rune Another prime! Congratulations to Rune on his 1st SR5 prime! 37328*5^504675+1

2010-08-25, 21:49	#26
Joe O Aug 2002 3·5²·7 Posts	Prime #1 for StefanoD Congratulations to Stefano on his first S/R Base 5 prime! 341552*5^427478-1

2010-09-07, 14:31	#27
Joe O Aug 2002 3·5²·7 Posts	S/R Base 5 Primes Prime #13 for Lennart 2614485^461217-1 Prime #2 for Rune 2502165^460797-1 Congratulations to both of you! Keep them coming.

2010-10-12, 05:14	#30
gd_barnes May 2007 Kansas; USA 3³×5×7×11 Posts	Congrats Lars on a monster top-100 prime! For historical reference and accounting purposes both here and at CRUS for Riesel base 25, I should state here that this prime actually knocks out k=158750 for bases 5 and 25 because: 2545^4-1 is prime 12705^3-1 is prime 63505^2-1 is prime 317505^1-1 is prime -- and now since n must be >= 1 -- 1587505^911502-1 is prime -- and finally for CRUS -- 15875025^455751-1 is prime Congrats again! :-) Gary Last fiddled with by gd_barnes on 2010-10-12 at 05:16

2010-09-11, 21:14	#28
Joe O Aug 2002 3×5²×7 Posts	Another prime for Lennart...his 14th this year for SR5! *1704465^468081-1** Congrats!

2010-10-11, 16:00	#29
ltd Apr 2003 2²·193 Posts	This time an announcement for myself. Looks like the smallest k of the whole project was finished: 254*5^911506-1 is prime http://primes.utm.edu/primes/page.php?id=95347 Lets see what the officials have to say about it.

2010-10-15, 04:05	#31
ltd Apr 2003 1404₈ Posts	Its a good month for me: 128552*5^5525537+1 is prime http://primes.utm.edu/primes/page.php?id=95404

2010-10-15, 13:27	#33
ltd Apr 2003 1100000100₂ Posts	Oops my fault. You are right. But the wrong one would have been a real finding.

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