is 2 47560199 - 1
has 14317047 decimal digits
takes 82.570 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L94B7770459673087double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual27340.219464.3836 %1000000200000005.12334.8159 %45.342766.0988 %
Target27220.107963.8889 %340000550000008.35274.1604 %28.460565.3912 %
Difference+1+20.1116+0.4947 %+660000-35000000-3.2294+0.6555%+16.8822+0.7076 %

Known prime factors (2 factors, 171.1 bits, 0.00035972% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4756019913572663449054843695102072580.16714268930465424297
13 × 593 × 826039 × 2240747
2019-05-1182603922407476,059.02.27354.2320
4756019923377733754095389491100384012890.91724576993206121140800
26 × 52 × 83 × 2381 × 71249 × 1090919
2019-05-117124910909195,728,5910.31920.3650

1 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-09-21JohanSelandMaverick745000745000--1.8752.139%
2019-05-11Sid & AndyMagic_8_Ball10000002000000012252171.0845.0275.278%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-03-22curtiscv4_computers212691.257
2015-08-13Gordon SpenceManual testing2692702.514
2015-10-19Sid & AndyManual testing2702715.028
2015-12-04ANONYMOUSManual testing27127210.06
2018-01-02ANONYMOUSManual testing27227320.11


ECM factoring results:
No ECM results for M47560199


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2010-01-13curtiscgrn122c-23l94B777045967308782.57
2019-02-06AUM - KuwaitHPC_594B777045967308782.57


PRP results:
No PRP results for M47560199


CERT results:
No CERT results for M47560199


P-1 factor-bounds graph:
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 745000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
TF factor-bounds graph:
273
272
271
270
269
this exponent TF target: 72
TF double-checked to: 67
250
260
270
280
290
2100
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Last modified: 2024-03-13T02:15:48+00:00