List of megabit primes found

Lennart · 2011-11-16, 22:11

This is a list of primes found for the megabit twin subproject. So far, we've found 4 primes of the form k*2^1000000-1. The k values are:

20667679305
24335320035
26983775475
48487212045

No megabit twins or sophies have been found yet.
--------------------------------------------------------------------
(Original message, split off from the variable-n primes thread)
26983775475*2^1000000-1 is Prime

24335320035*2^1000000-1 is Prime

Lennart

odicin · 2011-11-17, 09:23

Double check of primes and residues:

Code:

20667679305*2^1000000-1 is prime!  Time : 1671.008 sec.
20667679305*2^1000000+1 is not prime.  Proth RES64: D5FEDE3C68FF8A33  Time : 1654.849 sec.
20667679305*2^999999-1 is not prime.  LLR Res64: 5D7D54EA474DE2F3  Time : 1674.946 sec.
20667679305*2^1000001-1 is not prime.  LLR Res64: 190ABF16BF2300A1  Time : 1676.490 sec.
24335320035*2^1000000-1 is prime!  Time : 1666.407 sec.
24335320035*2^1000000+1 is not prime.  Proth RES64: A1E8CE41DC18A34D  Time : 1638.813 sec.
24335320035*2^999999-1 is not prime.  LLR Res64: 4E3BF10A827D4295  Time : 1648.949 sec.
24335320035*2^1000001-1 is not prime.  LLR Res64: B4D3DA96380D5567  Time : 1649.050 sec.
26983775475*2^1000000-1 is prime!  Time : 1649.023 sec.
26983775475*2^1000000+1 is not prime.  Proth RES64: 928A3068285A3CBC  Time : 1635.337 sec.
26983775475*2^999999-1 is not prime.  LLR Res64: 73907D3ECAE5227B  Time : 1648.821 sec.
26983775475*2^1000001-1 is not prime.  LLR Res64: B7A0936C2CBE99B0  Time : 1648.816 sec.
48487212045*2^1000000-1 is prime!  Time : 1659.424 sec.
48487212045*2^1000000+1 is not prime.  Proth RES64: 2F884A10EB19288F  Time : 1637.815 sec.
48487212045*2^999999-1 is not prime.  LLR Res64: 33F1764E8034A4BC  Time : 1662.335 sec.
48487212045*2^1000001-1 is not prime.  LLR Res64: F729303DBDEE3C92  Time : 1649.756 sec.

------------------------------------------------------------
Original message:
Ok, I did a manual check of this at my founded prime:

20667679305*2^1000001-1 is not prime. LLR Res64: 190ABF16BF2300A1 Time : 2064.986 sec.
20667679305*2^999999-1 is not prime. LLR Res64: 5D7D54EA474DE2F3 Time : 2036.156 sec.

Regards Odi

Neo · 2011-12-24, 17:41

48487212045*2^1000000-1 is prime!

Neo

odicin · 2012-02-14, 08:19

66708604185*2^1000000-1 is prime!

Twin check:
66708604185*2^1000000+1 is not prime. LLR Res64: 94BB98BED224D61C Time: 3322 seconds

Manuel SG check:
66708604185*2^1000001-1 is not prime. LLR Res64: 566F61223CA0F769 Time: 2109.128 sec.
66708604185*2^999999-1 is not prime. LLR Res64: 2405E98D475668A3 Time: 1969.096 sec.

odicin · 2012-05-05, 13:29

77522904885*2^1000000-1 is prime!

Twin check:
77522904885*2^1000000+1 is not prime. Program: llr64.exe Residue: 75A34B58D608272C Time: 543 seconds

Manual SG check:
77522904885*2^1000001-1 is not prime. LLR Res64: 0EC8AB6734658482 Time : 2272.483 sec.
77522904885*2^999999-1 is not prime. LLR Res64: 86C921E9616CB41E Time : 2055.888 sec.

odicin · 2012-06-25, 05:58

91452556965*2^1000000-1 is prime!

Twin check:
91452556965*2^1000000+1 is not prime. Program: llr64.exe Residue: 01506EA85432951B Time: 2227 seconds

Manual SG check:
91452556965*2^1000001-1 is not prime. LLR Res64: 8291E8E7C5462B76 Time : 1945.158 sec.
91452556965*2^999999-1 is not prime. LLR Res64: 99A302C747692853 Time : 1877.592 sec.

amphoria · 2012-07-06, 09:09

202344306135*2^1000000-1 is prime!

Twin check:
202344306135*2^1000000+1 is not prime. Proth RES64: 2E0ABD07D9C6D83D Time : 436.942 sec.

SG check:
202344306135*2^1000001-1 is not prime. LLR Res64: C55DE4D2A568DB47 Time : 435.009 sec.
202344306135*2^999999-1 is not prime. LLR Res64: EA28384B138267B0 Time : 435.342 sec.

Before anyone comments I know that I have assigned to the wrong project code - I was on auto-pilot!. I will contact Prof. Caldwell to get it corrected.

amphoria · 2012-07-18, 19:01

258937461585*2^1000000-1 is prime!

Twin check:
258937461585*2^1000000+1 is not prime. LLR Res64: B8ADC99499633962 Time: 548 seconds

SG check:
258937461585*2^1000001-1 is not prime. LLR Res64: 1EA6E1F69F52CD23 Time : 435.993 sec.
258937461585*2^999999-1 is not prime. LLR Res64: 480CD2B6B2C939B5 Time : 434.530 sec.

amphoria · 2012-07-20, 18:39

276244842795*2^1000000-1 is prime!

Twin check:
276244842795*2^1000000+1 Residue: CD4DFAAB5F635E04 Time: 545 seconds

SG check:
276244842795*2^1000001-1 is not prime. LLR Res64: CA11BC4DD9EE87AD Time : 433.668 sec.
276244842795*2^999999-1 is not prime. LLR Res64: 610C96738658B047 Time : 433.436 sec.

amphoria · 2012-07-24, 05:51

120617642145*2^1000000-1 is prime!

Twin check:
120617642145*2^1000000+1 Residue: 22A1DE10142E81AA Time: 543 seconds

SG check:
120617642145*2^1000001-1 is not prime. LLR Res64: EE0300FF99D35206 Time : 438.422 sec.
120617642145*2^999999-1 is not prime. LLR Res64: 6BCB61147505C9F7 Time : 439.422 sec.

Neo · 2012-07-26, 03:12

135882407955*2^1000000-1 is prime!

Twin check:
135882407955*2^1000000+1 is not prime. Proth RES64: 07EE213D630F53FD Time : 1949.612 sec.

SG check:
135882407955*2^999999-1 is not prime. LLR Res64: ED33E855E104A66C Time : 1982.221 sec.
135882407955*2^1000001-1 is not prime. LLR Res64: ED3583F08FF8DDC1 Time : 1983.058 sec.

2011-11-16, 22:11	#1
Lennart "Lennart" Jun 2007 1120₁₀ Posts	List of megabit primes found This is a list of primes found for the megabit twin subproject. So far, we've found 4 primes of the form k2^1000000-1. The k values are: 20667679305 24335320035 26983775475 48487212045 No megabit twins or sophies have been found yet. -------------------------------------------------------------------- (Original message, split off from the variable-n primes thread)* 269837754752^1000000-1 is Prime 243353200352^1000000-1 is Prime Lennart Last fiddled with by Oddball on 2011-12-25 at 19:06

2012-07-18, 19:01	#8
amphoria "Dave" Sep 2005 UK 2776₁₀ Posts	2589374615852^1000000-1 is prime! Twin check: 2589374615852^1000000+1 is not prime. LLR Res64: B8ADC99499633962 Time: 548 seconds SG check: 2589374615852^1000001-1 is not prime. LLR Res64: 1EA6E1F69F52CD23 Time : 435.993 sec. 2589374615852^999999-1 is not prime. LLR Res64: 480CD2B6B2C939B5 Time : 434.530 sec. Last fiddled with by amphoria on 2012-07-18 at 19:01

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2011-12-24, 17:41	#3
Neo Dec 2010 Ava, Missouri 2³×5 Posts	48487212045*2^1000000-1 is prime! Neo

2012-02-14, 08:19	#4
odicin Sep 2011 Potsdam, Germany 2·73 Posts	667086041852^1000000-1 is prime! Twin check: 667086041852^1000000+1 is not prime. LLR Res64: 94BB98BED224D61C Time: 3322 seconds Manuel SG check: 667086041852^1000001-1 is not prime. LLR Res64: 566F61223CA0F769 Time: 2109.128 sec. 667086041852^999999-1 is not prime. LLR Res64: 2405E98D475668A3 Time: 1969.096 sec.

2012-05-05, 13:29	#5
odicin Sep 2011 Potsdam, Germany 2·73 Posts	775229048852^1000000-1 is prime! Twin check: 775229048852^1000000+1 is not prime. Program: llr64.exe Residue: 75A34B58D608272C Time: 543 seconds Manual SG check: 775229048852^1000001-1 is not prime. LLR Res64: 0EC8AB6734658482 Time : 2272.483 sec. 775229048852^999999-1 is not prime. LLR Res64: 86C921E9616CB41E Time : 2055.888 sec.

2012-06-25, 05:58	#6
odicin Sep 2011 Potsdam, Germany 10010010₂ Posts	914525569652^1000000-1 is prime! Twin check: 914525569652^1000000+1 is not prime. Program: llr64.exe Residue: 01506EA85432951B Time: 2227 seconds Manual SG check: 914525569652^1000001-1 is not prime. LLR Res64: 8291E8E7C5462B76 Time : 1945.158 sec. 914525569652^999999-1 is not prime. LLR Res64: 99A302C747692853 Time : 1877.592 sec.

2012-07-06, 09:09	#7
amphoria "Dave" Sep 2005 UK 2³×347 Posts	2023443061352^1000000-1 is prime! Twin check: 2023443061352^1000000+1 is not prime. Proth RES64: 2E0ABD07D9C6D83D Time : 436.942 sec. SG check: 2023443061352^1000001-1 is not prime. LLR Res64: C55DE4D2A568DB47 Time : 435.009 sec. 2023443061352^999999-1 is not prime. LLR Res64: EA28384B138267B0 Time : 435.342 sec. Before anyone comments I know that I have assigned to the wrong project code - I was on auto-pilot!. I will contact Prof. Caldwell to get it corrected.

2012-07-20, 18:39	#9
amphoria "Dave" Sep 2005 UK 2³×347 Posts	2762448427952^1000000-1 is prime! Twin check: 2762448427952^1000000+1 Residue: CD4DFAAB5F635E04 Time: 545 seconds SG check: 2762448427952^1000001-1 is not prime. LLR Res64: CA11BC4DD9EE87AD Time : 433.668 sec. 2762448427952^999999-1 is not prime. LLR Res64: 610C96738658B047 Time : 433.436 sec.

2012-07-24, 05:51	#10
amphoria "Dave" Sep 2005 UK 5330₈ Posts	1206176421452^1000000-1 is prime! Twin check: 1206176421452^1000000+1 Residue: 22A1DE10142E81AA Time: 543 seconds SG check: 1206176421452^1000001-1 is not prime. LLR Res64: EE0300FF99D35206 Time : 438.422 sec. 1206176421452^999999-1 is not prime. LLR Res64: 6BCB61147505C9F7 Time : 439.422 sec.

2012-07-26, 03:12	#11
Neo Dec 2010 Ava, Missouri 2³·5 Posts	1358824079552^1000000-1 is prime! Twin check: 1358824079552^1000000+1 is not prime. Proth RES64: 07EE213D630F53FD Time : 1949.612 sec. SG check: 1358824079552^999999-1 is not prime. LLR Res64: ED33E855E104A66C Time : 1982.221 sec. 1358824079552^1000001-1 is not prime. LLR Res64: ED3583F08FF8DDC1 Time : 1983.058 sec.