is 2 60355297 - 1
has 18168755 decimal digits
takes 134.081 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
Actual27331.693164.3836 %----31.693164.3836 %
Target27331.693164.3836 %4000007000000013.50334.1561 %45.196465.8638 %
Difference----400000-70000000-13.5033-4.1561 %-13.5033-1.4802 %

Known prime factors (2 factors, 149.0 bits, 0.00024686% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
60355297155976231844921880719192373.724129215031321047
7 × 271 × 58411 × 1166141
2013-01-1458411116614133.6620.38260.3829
60355297455713532218825607285832375.271377525714287203
33 × 43 × 197 × 443 × 3726013
2013-01-144433726013252.000.65531.2213

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2013-01-14NesowaTesting45148.9943.7620.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2003-07-30Gordon Spencev4_computers212600.001
2022-03-29LordJuliusManual testing260263
2009-02-24ANONYMOUSsmartC2D2632640.033
2009-02-24JamesVHPdesk2642650.062
2009-02-24Old Dufferhomegrown2652670.371
2009-09-01arnaudSRV-2402672680.495
2009-09-04Team_Elteor_Borislavj~BroncoATI12682690.991
2011-07-07Tom DuellManual testing2692701.981
2012-08-19MarzbugCorei72702713.962
2012-12-26bcp19Manual testing27127323.77


ECM factoring results:
No ECM results for M60355297


Lucas-Lehmer results:
No L-L results for M60355297


PRP results:
No PRP results for M60355297


CERT results:
No CERT results for M60355297


P-1 factor-bounds graph:
101
102
103
104
105
101
102
103
104
105
106
107
TF factor-bounds graph:
273
271
270
269
268
267
265
264
263
260
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