is 2 120295309 - 1
has 36212497 decimal digits
takes 589.990 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
Actual277254.441964.9351 %6640005079945024.14744.1597 %278.589366.3937 %
Target277254.441964.9351 %70000013000000055.07623.7188 %309.518166.2391 %
Difference----36000-79200550-30.9288+0.4409%-30.9288+0.1546 %

Known prime factors (1 factor, 89.5 bits, 0.00007443% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1202953099005633545211063163555066492789.5413743135796430375836
22 × 3 × 311 × 10861 × 33563 × 2751461
2023-11-243356327514611,042,2001.29181.9911

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2023-11-24MarkSdesktop-i76640005079945022789.54126.124.160%


Trial Factoring results:
575859606162636465666768697071727374757677
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2010-05-16sannerud.comJim20102632640.016
2010-10-18Architects Cubedi4l_12642650.031
2012-08-04subgeniusck-pasqual2652660.062
2013-04-17E.Lechner2662670.124
2015-01-14caddrManual testing2672680.248
2015-04-19SMoffatManual testing2682690.497
2015-04-25XebecerManual testing2692700.994
2015-05-20XebecerManual testing2702711.988
2015-07-09ITSLJCA_-_RadioStation2712723.976
2020-10-25SRBaseManual testing2722737.951
2021-06-12FlaukrotistManual testing27327415.90
2021-07-15TheJudgerManual testing27427531.81
2021-07-15TheJudgerManual testing27527663.61
2022-06-20TheJudgerManual testing276277127.2


ECM factoring results:
No ECM results for M120295309


Lucas-Lehmer results:
No L-L results for M120295309


PRP results:
No PRP results for M120295309


CERT results:
No CERT results for M120295309


P-1 factor-bounds graph:
B1 = 664000, B2 = 50799450 (P-1 stage 2)
B1 = 664000 (P-1 stage 1)
103
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105
106
103
104
105
106
107
108
TF factor-bounds graph:
277
276
275
274
273
272
271
270
269
268
267
266
265
264
this exponent TF target: 77
TF double-checked to: 67
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Last modified: 2024-02-09T03:30:02+00:00