is 2 13088557 - 1
has 3940049 decimal digits
takes 5.346 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-
PRP81B103841EC6CCFCPRP-tested

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.270264.1791%3000002241637867.40168.9456%9.671867.3835%3.2044%
PrimeNet2640.271962.5000%6000017000000.08854.3415%0.360464.1281%1.6281%
GPU722684.554064.7059%9000024000000.12783.1720%4.681865.8254%1.1195%
Difference-1-2.2837-0.5268%+210000+221763786+7.2738+5.7736%+4.9900+1.5581%+2.0849%

Known prime factors (2 factors, 178.9 bits, 0.00136705% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1308855733457565979828071651.571127812279
3 × 7 × 6086299
-760862994.573e-50.19640.3668
1308855721780239503186310111041551122868314692939127.3568320336421802002356348966170552
23 × 3 × 139 × 457 × 12703 × 28001 × 29537 × 151169 × 3436289
2022-06-0415116934362891.078e+100.19550.2071

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1308855772871380023431371419513100091751835180455043819684
9703
54178.928
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2022-05-31T23:18:39nordisweet16_30.8b14300000300000---0.178--2.161%
2022-06-04T03:33:27nordisweet16_30.8b1430000022416378639127.3567.40210.6914.808.946%


Trial Factoring results:
No TF results for M13088557


ECM factoring results:
No ECM results for M13088557


Lucas-Lehmer results:
No L-L results for M13088557


PRP results:
dateuseridcompidcofactorsres64PRP
2022-06-09T09:35:13ATHec2-PRPCF
3345756597982807
217802395031863101110415511228683146929
81B103841EC6CCFCno


P-1 factor-bounds graph:
B1 = 300000, B2 = 224163786 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2022-06-09T09:35:13+00:00