is 2 63696319 - 1
has 19174503 decimal digits
takes 149.627 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
Actual27460.064264.8649 %----60.064264.8649 %
Target27460.064264.8649 %4000007000000014.27863.7886 %74.342866.1960 %
Difference----400000-70000000-14.2786-3.7886 %-14.2786-1.3311 %

Known prime factors (1 factor, 81.9 bits, 0.00012852% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6369631943952937561405523046607372581.86234501944736716672
27 × 3 × 41 × 487 × 2663 × 1689773
2013-06-122663168977313,3000.32220.5857

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-06-12Jwb52zClay2581.8623.7000.000%


Trial Factoring results:
575859606162636465666768697071727374
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-08-25Gordon Spencev4_computers212590.001
2022-03-30LordJuliusManual testing21263
2009-02-25Wojciech Florekarmada12632640.031
2009-09-07eon_blue_apocalypseCeasar2642650.059
2009-11-14sunithayaboxx2652660.117
2009-11-24steinrarjb2662670.235
2009-11-29steinrarjb2672680.469
2009-12-01steinrarjb2682690.939
2012-05-12Vladimir Tshegolevatykhloli2692701.877
2012-06-17ITSTV2702713.754
2013-03-09Jerry HallettManual testing27127322.53
2013-05-16gcardonaManual testing27327430.03


ECM factoring results:
No ECM results for M63696319


Lucas-Lehmer results:
No L-L results for M63696319


PRP results:
No PRP results for M63696319


CERT results:
No CERT results for M63696319


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
107
TF factor-bounds graph:
274
273
271
270
269
268
267
266
265
264
263
259
this exponent TF target: 74
TF double-checked to: 67
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00