is 2 25199011 - 1
has 7585659 decimal digits
takes 21.594 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L3BF436CA55E307AAdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27118.972164.7887%3750003750000.46601.6316%19.438165.3632%0.5745%
PrimeNet2660.586162.1212%11000040000000.40004.9828%0.986164.0086%1.8874%
GPU722709.482564.2857%18000055000000.58383.7366%10.066465.6202%1.3345%
Difference+1+9.4896+0.5030%+195000-5125000-0.1179-2.1050%+9.3717-0.2570%-0.2570%

Known prime factors (1 factor, 67.1 bits, 0.00026642% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
251990111621675295656371874072167.1363217735996973
73 × 44078575301
2011-11-2573440785753011.20822,984.15,573.4

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-07-26T00:00:00ANONYMOUSv4_computers375000375000---0.466--1.632%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2011-11-25T06:17:00Carsten KossendeyManual testing??67.136210.02943.990.059
2001-08-12T00:00:00Net_Forcev4_computers21256--0.000--
2001-08-24T00:00:00Mattv4_computers21258--0.002--
2003-12-23T00:00:00markrv4_computers21262--0.024--
2004-04-29T00:00:00CTI-Consultingv4_computers21267--1.179--
2011-11-25T06:17:00Carsten KossendeyManual testing267271--17.79--


ECM factoring results:
No ECM results for M25199011


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-10-18T00:00:00ANONYMOUSv4_computers3BF436CA55E307AA21.59
2011-09-17T15:48:001997rj7Manual testing8E9F6C90DFEFF4__21.59


PRP results:
No PRP results for M25199011


P-1 factor-bounds graph:
B1 = 375000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
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104
105
106
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1010
1011
TF factor-bounds graph:
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262
258
256
2
250
260
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2100
Last modified: 2011-11-25T06:17:26+00:00