is 2 48472013 - 1
has 14591530 decimal digits
takes 84.153 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
Actual2692.463062.3188 %----2.463062.3188 %
Target27219.729663.8889 %340000550000008.35274.1704 %28.082365.3949 %
Difference-3-17.2666-1.5700 %-340000-55000000-8.3527-4.1704 %-25.6193-3.0760 %

Known prime factors (1 factor, 87.7 bits, 0.00018087% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
484720132467845374316953618066262312787.6732545639454170134855
32 × 5 × 13 × 31 × 109 × 1091 × 3851 × 306517
2011-05-0338513065171,001,4200.05120.0785

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-05-03Wojciech Florekgafel2787.6731.3970.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2002-03-24Jossv4_computers212570.000
2003-06-06Thomas Mullenv4_computers212590.001
2008-05-21S36049v4_computers212691.233


ECM factoring results:
No ECM results for M48472013


Lucas-Lehmer results:
No L-L results for M48472013


PRP results:
No PRP results for M48472013


CERT results:
No CERT results for M48472013


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
269
259
257
this exponent TF target: 72
TF double-checked to: 67
250
260
270
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290
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Last modified: 2024-03-13T02:15:48+00:00