is 2 91601753 - 1
has 27574876 decimal digits
takes 331.802 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual277334.143964.9351%700000122500006.98173.0928%341.125566.0195%1.0845%
PrimeNet2715.219161.9718%400000180000007.13725.5559%12.356364.0846%2.1128%
GPU7227583.534564.0000%600000220000009.27514.1389%92.809665.4900%1.4900%
Difference+2+250.6094+0.9351%+100000-9750000-2.2934-1.0462%+248.3159+0.5295%+0.5295%

Known prime factors (1 factor, 95.6 bits, 0.00010431% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
91601753580276513730237651517214703932995.551316738760299837084732
22 × 23 × 4013 × 8209 × 18919 × 5524027
2019-06-0118919552402793,130,5841.67472.9524

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2019-06-01T04:26:52Jwb52zClay700000122500002995.5516.982663.613.963.093%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-03T23:40:00Architects Cubedm1_71264265--0.041--
2013-06-18T01:19:00David CampeauManual testing265266--0.082--
2014-02-06T17:21:00ANONYMOUS266267--0.163--
2014-02-14T00:11:00wuxiaoDNE_Black_Sheep267268--0.326--
2014-02-17T03:47:00wuxiaoDNE_Black_Sheep268269--0.653--
2014-02-21T23:28:00wuxiaoDNE_Black_Sheep269270--1.305--
2014-09-07T19:56:00SMoffatManual testing270271--2.611--
2017-10-30T16:00:19Strolling JellyfishManual testing271272--5.221--
2017-10-30T16:00:19Strolling JellyfishManual testing272273--10.44--
2017-10-30T16:00:19Strolling JellyfishManual testing273274--20.88--
2017-10-30T16:00:19Strolling JellyfishManual testing274275--41.77--
2017-10-30T16:00:19Strolling JellyfishManual testing275276--83.54--
2019-03-24T07:51:27TravisJankManual testing276277--167.1--


ECM factoring results:
No ECM results for M91601753


Lucas-Lehmer results:
No L-L results for M91601753


PRP results:
No PRP results for M91601753


P-1 factor-bounds graph:
B1 = 700000, B2 = 12250000 (P-1 stage 2)
B1 = 700000 (P-1 stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2019-06-01T04:26:52+00:00