is 2 104890637 - 1
has 31575229 decimal digits
takes 417.632 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
Actual276145.904364.4737%7560007560004.36461.5354%150.268965.0191%0.5455%
PrimeNet2729.117462.5000%450000220000009.37655.3953%18.493964.5232%2.0232%
GPU72276145.904364.4737%6500002400000011.09733.9265%157.001665.8686%1.3949%
Difference---+106000-23244000-6.7327-2.3911%-6.7327-0.8495%-0.8495%

Known prime factors (1 factor, 76.7 bits, 0.00007316% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1048906371260276337781807564019772476.738600757309626124
22 × 72 × 19 × 269 × 4421 × 135649
2021-07-134421135649236.980.06680.0797

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2021-07-13T20:38:28Jwb52zClay7560007560002476.7384.365835.38.7291.535%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2010-04-24T00:29:00Bruce J. WilderGOOFY263264--0.019--
2010-08-29T12:24:00Donna NobleATH2-630-temp264265--0.036--
2012-05-17T08:03:00Richard8F02265266--0.071--
2013-09-09T21:38:00willmoreManual testing266267--0.142--
2014-05-12T01:18:00SMoffatManual testing267268--0.285--
2014-06-08T01:35:00SMoffatManual testing268269--0.570--
2014-06-11T00:31:00Quantum SingularityManual testing269270--1.140--
2014-06-24T22:22:00Quantum SingularityManual testing270271--2.280--
2014-06-24T22:22:00Quantum SingularityManual testing271272--4.560--
2020-02-21T17:54:01bayanneGPU72_TF272273--9.119--
2020-03-01T19:39:53Hans LoeblichManual testing273274--18.24--
2021-03-28T21:28:50TheJudgerManual testing274275--36.48--
2021-03-28T21:28:50TheJudgerManual testing275276--72.95--


ECM factoring results:
No ECM results for M104890637


Lucas-Lehmer results:
No L-L results for M104890637


PRP results:
No PRP results for M104890637


P-1 factor-bounds graph:
B1 = 756000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
276
275
274
273
272
271
270
269
268
267
266
265
264
250
260
270
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2100
Last modified: 2021-07-13T20:38:28+00:00