is 2 70764293 - 1
has 21302175 decimal digits
takes 189.196 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
Actual27454.064963.5135 %645000133837505.19114.0496 %59.256064.9911 %
Target27454.064963.5135 %4500008000000018.54674.0043 %72.611664.9745 %
Difference---+195000-66616250-13.3556+0.0453%-13.3556+0.0165 %

Known prime factors (2 factors, 195.5 bits, 0.00027621% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
7076429310879353282275177310392832412889.8147687035947829774340
22 × 5 × 7 × 41 × 43 × 1409 × 1699 × 13009907
2015-01-261699130099072,523,3042.75415.1323
707642936334060707656736420683089816371132105.643447546385269244223261235
32 × 5 × 97 × 661 × 7332 × 377387 × 764993
2015-01-265372897649932.512e+92.13104.2391

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2015-01-26ENASUSLAPTOP6450001338375012259195.4575.1914.050%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-11-17Amperiov4_computers212630.014
2008-11-22ANONYMOUSManual testing212640.027
2008-11-22Wojciech FlorekManual testing21264
2008-11-24George WoltmanManual testing21264
2010-03-06Per Jessengreenwood2642650.053
2010-03-11Sturle Sundecanis.flu2652660.106
2010-03-13PrimeCruncherApollo82662670.211
2010-03-21PrimeCruncherApollo82672680.422
2010-03-31lycornv4_computers212702.534
2010-07-20lycornv4_computers212701.690
2014-04-10Risto A. PajuManual testing27027210.14
2014-11-23TheJudgerManual testing27227440.55


ECM factoring results:
No ECM results for M70764293


Lucas-Lehmer results:
No L-L results for M70764293


PRP results:
No PRP results for M70764293


CERT results:
No CERT results for M70764293


P-1 factor-bounds graph:
B1 = 645000, B2 = 13383750 (P-1 stage 2)
B1 = 645000 (P-1 stage 1)
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108
TF factor-bounds graph:
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268
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265
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263
this exponent TF target: 74
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00