is 2 999998621 - 1
has 301029581 decimal digits
takes 47,430.490 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual280244.866962.5000 %----244.866962.5000 %
Target2857,835.746264.7059 %550000014000000005,603.46954.4846 %13,439.215866.2887 %
Difference-5-7,590.8793-2.2059 %-5500000-1400000000-5,603.4695-4.4846 %-13,194.3489-3.7887 %

Known prime factors (1 factor, 80.8 bits, 0.00000808% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
99999862121474807265640343251688412580.8291073741843972020
22 × 5 × 53687092198601
2012-08-20553687092198601244.87201,166,280375,722,590

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2012-08-20Smok_bmvManual testing2580.829-0.000%


Trial Factoring results:
5758596061626364656667686970717273747576777879808182838485
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2021-11-17onlinegameManual testing21267
2022-04-07LordJuliusManual testing21270
2021-11-17onlinegameManual testing268270
2009-05-21Rob_Deetwopc2692700.120
2009-05-25Rob_Deetwopc2702710.239
2022-04-07LordJuliusManual testing270271
2009-05-30Rob_Deetwopc2712720.478
2022-04-07LordJuliusManual testing271272
2009-07-18James HintzOMFG2722730.957
2022-04-07LordJuliusManual testing272273
2009-11-27James HintzNEW_OMFG2732741.913
2022-04-07LordJuliusManual testing273274
2009-11-28James HintzNEW_OMFG2742753.826
2010-04-01James Hintz09_1221092752767.652
2011-02-16lindeeManual testing27627715.30
2012-08-20Smok_bmvManual testing27727830.61
2012-08-20Smok_bmvManual testing27827961.22
2012-08-20Smok_bmvManual testing279280122.4


ECM factoring results:
No ECM results for M999998621


Lucas-Lehmer results:
No L-L results for M999998621


PRP results:
No PRP results for M999998621


CERT results:
No CERT results for M999998621


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
1013
1014
TF factor-bounds graph:
280
279
278
277
276
275
274
273
272
271
270
267
this exponent TF target: 85
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00