is 2 271 - 1
has 82 decimal digits
takes 0.000 GHz-days to do one PRP test
Has been fully factored.
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 PRP tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP30559A16BE075E0CPRP-tested
Cofactor is a certified prime

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actualunknown----0.00000.0000%
Target2440.008679.5455%500500000.00000.3891%0.008679.6250%
Difference-44-0.0086-79.5455%-500-500000.0000-0.3891%-0.0086-79.6250%

Known prime factors (2 factor, 271.0 bits, 100.00000000% known):
Remaining cofactor is a certified-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
271152424752171133.82728122648
23 × 3 × 53 × 22109		-53221094.870e-61.850e-83.316e-8
271
hide decimal representation
248927757868131890277330541567820045256364273970773286542188386932989391
72237.173

P-1 results:
No P-1 results for M271


Trial Factoring results:
No TF results for M271


ECM factoring results:
No ECM results for M271


Lucas-Lehmer results:
No L-L results for M271


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-24Luke_Richardswork-laptop30559A16BE075E0Cno
2018-01-24-p95holder- @bopoh13Lucius_Yorkfield
15242475217
PRP


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
this exponent TF target: 44
TF double-checked to: 67.9
250
Last modified: 2023-09-25T11:53:03+00:00