is 2 160276693 - 1
has 48248093 decimal digits
takes 1,051.816 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
Actual2801,527.774065.0000 %5000000150000000122.75165.0031 %1,650.525566.7511 %
Target278381.942764.1026 %1000000180000000102.31593.8992 %484.258665.5023 %
Difference+2+1,145.8313+0.8974 %+4000000-30000000+20.4356+1.1039%+1,166.2669+1.2488 %

Known prime factors (1 factor, 87.0 bits, 0.00005430% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1602766931580024335391625313781076412787.030492905208429657740
22 × 5 × 7649 × 98809 × 32608607
2020-11-089880932608607195,55517.79531.575

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-11-08Roland ClarksonManual testing5000000150000000622787.030117.15.890%


Trial Factoring results:
575859606162636465666768697071727374757677787980
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-29Torchwood InstitutePH2-940-v3-MVB2632640.012
2011-02-02runeskubuntutest12642650.023
2013-02-22Chih-Wei Huangnew_dell2652660.047
2015-05-02vwflat4j-laptop2662670.093
2020-11-06Roland ClarksonManual testing212680.372
2016-03-02XZTManual testing2672680.186
2017-03-25Xolotlarmstrong-phi-162682690.373
2020-11-06Roland ClarksonManual testing2682690.373
2017-12-03hpadirManual testing2692700.746
2020-11-06Roland ClarksonManual testing2692700.746
2020-11-06Roland ClarksonManual testing2702711.492
2020-11-06Roland ClarksonManual testing2712722.984
2020-11-06Roland ClarksonManual testing2722735.968
2020-11-06Roland ClarksonManual testing27327411.94
2020-11-06Roland ClarksonManual testing27427523.87
2017-12-25Oliver KruseManual testing27027693.99
2020-11-06Roland ClarksonManual testing27527647.74
2020-11-06Roland ClarksonManual testing27627795.49
2020-11-06Roland ClarksonManual testing277278191.0
2020-11-06Roland ClarksonManual testing278279381.9
2020-11-06Roland ClarksonManual testing279280763.9


ECM factoring results:
No ECM results for M160276693


Lucas-Lehmer results:
No L-L results for M160276693


PRP results:
No PRP results for M160276693


CERT results:
No CERT results for M160276693


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (P-1 stage 2)
B1 = 5000000 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 78
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00