is 2 160369931 - 1
has 48276160 decimal digits
takes 1,052.428 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
Actual279763.442364.5570 %5000000150000000122.75165.4309 %886.193966.4818 %
Target278381.720664.1026 %1000000180000000102.31593.8995 %484.036565.5024 %
Difference+1+381.7217+0.4544 %+4000000-30000000+20.4356+1.5314%+402.1573+0.9795 %

Known prime factors (1 factor, 79.5 bits, 0.00004960% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1603699318779629629046425681223132479.5392737305420754476
22 × 3 × 11 × 13 × 54011 × 29534101
2021-01-145401129534101763.4415.79828.598

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-01-14Roland ClarksonManual testing500000015000000022479.539127.35.891%


Trial Factoring results:
5758596061626364656667686970717273747576777879
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-06-30EPFEPF_012632640.012
2011-02-02sasaki3mate242642650.023
2013-02-27Richardsvn_022652660.047
2015-05-02S. EichsteiningerMacPrime2662670.093
2016-03-04XZTManual testing2672680.186
2017-03-29La GüiraManual testing2682690.373
2017-03-29La GüiraManual testing2692700.746
2017-12-06Oliver KruseManual testing27027693.94
2021-01-13Roland ClarksonManual testing27627795.43
2021-01-13Roland ClarksonManual testing277278190.9
2021-01-13Roland ClarksonManual testing278279381.7


ECM factoring results:
No ECM results for M160369931


Lucas-Lehmer results:
No L-L results for M160369931


PRP results:
No PRP results for M160369931


CERT results:
No CERT results for M160369931


P-1 factor-bounds graph:
B1 = 5000000, B2 = 150000000 (P-1 stage 2)
B1 = 5000000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
TF factor-bounds graph:
279
278
277
276
270
269
268
267
266
265
264
this exponent TF target: 78
TF double-checked to: 67
250
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280
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Last modified: 2024-03-13T02:15:48+00:00