is 2 51798869 - 1
has 15593014 decimal digits
takes 99.233 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
Actual2681.150761.7647 %----1.150761.7647 %
Target27336.928364.3836 %340000550000009.21693.8033 %46.145265.7382 %
Difference-5-35.7776-2.6189 %-340000-55000000-9.2169-3.8033 %-44.9945-3.9735 %

Known prime factors (1 factor, 69.3 bits, 0.00013372% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
517988697099599760297761989772169.2666853045150752
25 × 3 × 1741 × 2239 × 18313
2010-06-182239183132.82040.00870.0127

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2010-06-18Sid & AndyMr_Potato_Head2169.2661.8750.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-02-23ANONYMOUSv4_computers212544.63000e-5
2000-04-27ANONYMOUSv4_computers212560.000
2001-05-27ANONYMOUSv4_computers212570.000
2002-03-16ANONYMOUSv4_computers212580.001
2003-11-28apocalypsev4_computers212600.001
2022-04-05LordJuliusManual testing260263
2009-01-31HighPriceRanchnelsontos2632640.038
2009-02-03HighPriceRanchnelsontos2642650.072
2009-04-08glennpatSHAWNPC-642652660.144
2009-04-09glennpatSHAWNPC-642662670.289
2010-02-15{WC}PistolPeteP-7805U-P2672680.577


ECM factoring results:
No ECM results for M51798869


Lucas-Lehmer results:
No L-L results for M51798869


PRP results:
No PRP results for M51798869


CERT results:
No CERT results for M51798869


P-1 factor-bounds graph:
102
103
104
102
103
104
105
TF factor-bounds graph:
268
267
266
265
264
263
260
258
257
256
254
this exponent TF target: 73
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00