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Old 2011-11-16, 22:11   #1
Lennart
 
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"Lennart"
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Default 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 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

Last fiddled with by Oddball on 2011-12-25 at 19:06
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Old 2011-11-17, 09:23   #2
odicin
 
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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

Last fiddled with by Oddball on 2011-12-25 at 19:04
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Old 2011-12-24, 17:41   #3
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48487212045*2^1000000-1 is prime!

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Old 2012-02-14, 08:19   #4
odicin
 
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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.
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Old 2012-05-05, 13:29   #5
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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.
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Old 2012-06-25, 05:58   #6
odicin
 
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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.
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Old 2012-07-06, 09:09   #7
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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.
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Old 2012-07-18, 19:01   #8
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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.

Last fiddled with by amphoria on 2012-07-18 at 19:01
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Old 2012-07-20, 18:39   #9
amphoria
 
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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.
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Old 2012-07-24, 05:51   #10
amphoria
 
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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.
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Old 2012-07-26, 03:12   #11
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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.
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