5*2^n-1 Reservation Thread - Page 58

pinhodecarlos · 2017-01-03, 14:21

Just to share that since last week I've turned on my laptop to k=5 crunching but it will go slowly since it is on only two cores avx.

paulunderwood · 2017-01-13, 16:58

Congrats to Dmitry Domanov for the 1,634,442 digit prime 5 * 2^5429494 - 1

pepi37 · 2017-01-13, 19:18

Very nice prime!
Congratulations!

Kosmaj · 2017-01-14, 02:02

Hi unconnected,

Congrats on a nice prime!

unconnected · 2017-01-14, 09:48

Thank you all! It's proven now.

Batalov · 2017-01-14, 17:13

Errhm... You probably wanted to say: "It is validated now"

Congrats!!

pinhodecarlos · 2017-01-15, 10:10

Congratulations Dmitry!!!

pinhodecarlos · 2017-01-23, 18:36

5,200,000-5,225,000 - 30% complete
5,225,000-5,250,000 - 30% complete

pepi37 · 2017-01-26, 10:54

Quote:

Originally Posted by paulunderwood

Congrats to Dmitry Domanov for the 1,634,442 digit prime 5 * 2^5429494 - 1

(5 · 2^5429494-1)²+36 , this is unverified prime, but it looks like very similar to 5*2^5429494-1

paulunderwood · 2017-01-26, 12:17

Quote:

Originally Posted by pepi37

(5 · 2^5429494-1)²+36 , this is unverified prime, but it looks like very similar to 5*2^5429494-1

I have just emailed Chris Caldwell about this hopeless case -- not PRP, not provable -- so his server stops wasting its time on it.

rudy235 · 2017-01-26, 18:52

Quote:

Originally Posted by paulunderwood

I have just emailed Chris Caldwell about this hopeless case -- not PRP, not provable -- so his server stops wasting its time on it.

I would think there is no method of proving deterministically such a large prime of that form even if it were a PRP (which apparently it is NOT)

2017-01-13, 16:58	#629
paulunderwood Sep 2002 Database er0rr 3532₁₀ Posts	Congrats to Dmitry Domanov for the 1,634,442 digit prime 5 * 2^5429494 - 1 Last fiddled with by paulunderwood on 2017-01-13 at 17:01

2017-01-23, 18:36	#635
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 1001011110000₂ Posts	Just an update 5,200,000-5,225,000 - 30% complete 5,225,000-5,250,000 - 30% complete

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2017-01-03, 14:21	#628
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 2⁴·3·101 Posts	Just to share that since last week I've turned on my laptop to k=5 crunching but it will go slowly since it is on only two cores avx.

2017-01-13, 19:18	#630
pepi37 Dec 2011 After milion nines:) 10101101101₂ Posts	Very nice prime! Congratulations!

2017-01-14, 02:02	#631
Kosmaj Nov 2003 E26₁₆ Posts	Hi unconnected, Congrats on a nice prime!

2017-01-14, 09:48	#632
unconnected May 2009 Russia, Moscow 3²·281 Posts	Thank you all! It's proven now.

2017-01-14, 17:13	#633
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 9261₁₀ Posts	Errhm... You probably wanted to say: "It is validated now" Congrats!!

2017-01-15, 10:10	#634
pinhodecarlos "Carlos Pinho" Oct 2011 Milton Keynes, UK 2⁴·3·101 Posts	Congratulations Dmitry!!!