is 2 12336131 - 1
has 3713546 decimal digits
takes 4.749 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
1 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP2DCDD85FD37B18__
unverified PRP test

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.408764.1791%4000002662705508.30989.4156%10.718467.5519%3.3728%
PrimeNet2640.288562.5000%5500015000000.07474.1305%0.363264.0490%1.5490%
GPU722684.831764.7059%9000022000000.11443.0843%4.946165.7945%1.0886%
Difference-1-2.4230-0.5268%+310000+264070550+8.1953+6.3313%+5.7723+1.7574%+2.2842%

Known prime factors (2 factors, 194.8 bits, 0.00157935% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
12336131105090662950190986792063.188425946607369
425946607369
2000-03-1514259466073690.186912,95524,197
12336131424788749624775189808170295942193844199140131.642172172599992969914881809497622145
5 × 41 × 227 × 26417 × 49537 × 127133 × 179243 × 124071097
2022-02-281792431240710971.212e+103.86827.0481

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1233613144641331311850317481371649245035949124887780421206
346229889
59194.830
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-02-10T08:55:40nordisweet16_30.8b10400000400000---0.223--2.415%
2022-02-28T07:15:26nordisweet16_30.8b1040000026627055040131.6428.3109.49916.629.416%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-03-15T00:00:00ANONYMOUSv4_computers??63.188200.0579.670.117


ECM factoring results:
No ECM results for M12336131


Lucas-Lehmer results:
No L-L results for M12336131


PRP results:
dateuseridcompidcofactorsres64PRP
2022-03-08T23:54:34XZT7060Micro4
10509066295019098679
4247887496247751898081702959421938441991
2DCDD85FD37B18__no


P-1 factor-bounds graph:
B1 = 400000, B2 = 266270550 (P-1 stage 2)
B1 = 400000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-03-08T23:54:34+00:00