is 2 115061 - 1
has 34637 decimal digits
takes 0.000 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L902DB3F9D6F3E1F9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267258.244974.6269%10000000020000000000.770511.8449%259.015477.6323%3.0054%
PrimeNet2400.000057.5000%1200220000.00008.7418%0.000061.2153%3.7153%
GPU722440.000061.3636%1700280000.00005.3203%0.000063.4192%2.0556%
Difference+23+258.2449+13.2632%+99998300+1999972000+0.7705+6.5246%+259.0154+14.2131%+14.2131%

Known prime factors (1 factor, 106.7 bits, 0.09270178% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
11506112851169110882262649185890171324933106.664558450261638707409512601584
24 × 34903141352419213094537599
2013-10-1916349031413524192130945375991.551e+127.200e+151.345e+16

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-02-04T00:00:00ANONYMOUSv4_computers100000025000000---0.009--4.358%
2002-06-02T00:00:00ANONYMOUSv4_computers327683276800---0.001--1.348%
2002-07-20T00:00:00ANONYMOUSv4_computers655366553600---0.002--1.968%
2003-02-09T00:00:00ANONYMOUSv4_computers13107213107200---0.003--2.715%
2003-09-29T00:00:00ANONYMOUSv4_computers26214426214400---0.006--3.580%
2013-01-07T12:51:00alpertronManual testing1000000002000000000---0.771--11.845%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-09-14T00:00:00ANONYMOUSv4_computers252253--0.005--
2000-04-12T00:00:00ANONYMOUSv4_computers21254--0.021--
2022-03-07T03:12:35LordJuliusManual testing254255--0.021--
2000-12-21T00:00:00ANONYMOUSv4_computers21256--0.083--
2000-12-31T00:00:00ANONYMOUSv4_computers21256--0.083--
2002-05-18T00:00:00ANONYMOUSv4_computers21257--0.167--
2022-03-07T03:12:35LordJuliusManual testing257258--0.167--
2009-01-01T01:32:00Sturle Sundegehry.ifi258259--0.334--
2009-01-05T03:27:00Sturle Sundegimo.ifi259260--0.667--
2013-09-27T14:45:00lycornasteroid260261--1.335--
2022-05-10T17:24:01LordJuliusManual testing261262--2.670--
2022-05-10T17:24:01LordJuliusManual testing262263--8.532--


ECM factoring results:

Old Calculation Method

Total ECM effort:12.126 GHz-days
Estimated T-Level:30.239
DigitsB1CurvesCompleteFacMiss
2011000684 / 1006.8400.103%
2550000684 / 2802.4438.653%
30250000657 / 6401.02735.795%
35100000075 / 15660.04895.322%

New Calculation Method

Total ECM effort:12.126 GHz-days
Estimated T-Level:30.239
DigitsB1CompleteFacMiss
201100066.4480.000%
255000010.7930.002%
302500001.29827.313%
3510000000.12588.242%
4030000000.01098.991%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
500005000000270.074
250000250000005827.953
1000000100000000754.099


Lucas-Lehmer results:
No L-L results for M115061


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-21T21:18:17Oliver KruseDoppelherz
128511691108822626491858901713249
3D9B49E3D4A1EB__no
2017-09-22T10:00:43Oliver KruseManual testing
128511691108822626491858901713249
3D9B49E3D4A1EB__no
2017-10-13T11:39:58kkmrkkblmbrbkManual testing
128511691108822626491858901713249
3D9B49E3D4A1EB__no
2020-04-17T15:33:47Oliver KruseAddPrpType5
128511691108822626491858901713249
AD7196F7A54008__no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
B1 = 1000000, B2 = 25000000 (P-1 stage 2)
B1 = 262144, B2 = 26214400 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 131072, B2 = 13107200 (P-1 stage 2)
B1 = 65536, B2 = 6553600 (P-1 stage 2)
B1 = 262144 (P-1 stage 1)
B1 = 32768, B2 = 3276800 (P-1 stage 2)
B1 = 131072 (P-1 stage 1)
B1 = 65536 (P-1 stage 1)
B1 = 32768 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-05-10T17:24:01+00:00