is 2 97686661 - 1
has 29406616 decimal digits
takes 372.566 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
Actual277313.330064.9351%745000134100007.93593.2039%321.265966.0585%1.1234%
PrimeNet2729.789862.5000%400000200000008.11755.1846%17.907364.4442%1.9442%
GPU72276156.664164.4737%600000200000009.16323.7200%165.827465.7953%1.3216%
Difference+1+156.6659+0.4614%+145000-6590000-1.2274-0.5162%+155.4386+0.2632%+0.2632%

Known prime factors (1 factor, 90.1 bits, 0.00009219% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
9768666112855460111364692521289032012890.0546579946524820155600
24 × 3 × 52 × 31 × 163 × 217687 × 4984933
2020-03-2821768749849333,100,1792.64022.8052

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2020-03-28T16:42:44Jwb52zClay745000134100002890.0547.936745.115.873.204%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-01-12T20:40:00Architects Cubedm1_36264265--0.038--
2014-05-24T02:59:00monstManual testing265266--0.076--
2014-05-28T05:25:00kutenssmoothost266267--0.153--
2014-06-13T15:56:00g0bManual testing267268--0.306--
2014-06-16T16:04:00Earle LoweManual testing268269--0.612--
2014-11-29T02:22:00shaugeManual testing269270--1.224--
2014-11-29T02:22:00shaugeManual testing270271--2.448--
2019-01-05T12:16:23Niels_Mache_NextcloudManual testing271272--4.896--
2019-03-26T09:47:26Niels_Mache_NextcloudManual testing272273--9.79--
2019-10-24T21:52:29ixfd64Manual testing273274--19.58--
2019-10-27T22:21:25BytesInFlamesManual testing274275--39.17--
2020-01-19T22:43:16TheJudgerManual testing275276--78.33--
2020-02-02T21:39:22TheJudgerManual testing276277--156.7--


ECM factoring results:
No ECM results for M97686661


Lucas-Lehmer results:
No L-L results for M97686661


PRP results:
No PRP results for M97686661


P-1 factor-bounds graph:
B1 = 745000, B2 = 13410000 (P-1 stage 2)
B1 = 745000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2020-03-28T16:42:44+00:00