is 2 101967977 - 1
has 30695420 decimal digits
takes 405.995 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
Actual277300.174364.9351 %9200009200005.31151.4851 %305.485765.4558 %
Target276150.086364.4737 %65000011000000038.14833.8496 %188.234665.8413 %
Difference+1+150.0880+0.4614 %+270000-109080000-32.8368-2.3645 %+117.2512-0.3855 %

Known prime factors (1 factor, 80.2 bits, 0.00007862% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
10196797713536844194065187434164732580.1636637791879535468
22 × 19 × 113 × 1031 × 1783 × 420457
2020-05-2717834204574,661.40.14200.2470

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-05-27curtiscwcm201--33l92000092000012580.1635.3111.663%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-03-301997rj7compa2632640.019
2010-08-16Richardsvn_022642650.037
2012-04-19sasaki3home32652660.073
2013-12-13Skwerl_Austin2662670.147
2014-08-28g0bManual testing2672680.293
2014-10-09TDH-DXLmarrina2682690.586
2014-10-13Earle LoweManual testing2692713.518
2014-12-07shaugeManual testing2712724.690
2020-02-19Gordon BowerManual testing27227565.66
2020-04-29TheJudgerManual testing275277225.1


ECM factoring results:
No ECM results for M101967977


Lucas-Lehmer results:
No L-L results for M101967977


PRP results:
No PRP results for M101967977


CERT results:
No CERT results for M101967977


P-1 factor-bounds graph:
B1 = 920000 (P-1 stage 1)
102
103
104
105
106
102
103
104
105
106
TF factor-bounds graph:
277
275
272
271
269
268
267
266
265
264
this exponent TF target: 76
TF double-checked to: 67
250
260
270
280
290
JSON version of this page
Last modified: 2024-03-13T02:15:48+00:00