Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
61968341Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
189490007804313217575112374.02020-12-10 14:36:40
LL
StatusDateUserResidueShift
Verified (Factored)2013-12-13S000302CE5D780C169075959721612
History
DateUserTypeResult
2020-12-10ConductorF
Factor: 18949000780431321757511 / TF: 74-75
2016-02-27-Anonymous-NF
no factor from 2^73 to 2^74
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2013-12-13S00030C-LL
2CE5D780C1690759
2013-05-25S36049NF-PM1
B1=580000, B2=10730000
2013-02-26bcp19NF
no factor from 2^72 to 2^73
2013-02-14ChuckNF
no factor from 2^71 to 2^72
2013-02-12LaurVNF
no factor from 2^70 to 2^71
2011-12-04-Anonymous-NF
no factor from 2^69 to 2^70
2009-08-17Chang Chia-TcheNF
no factor from 2^68 to 2^69
2009-08-11-Anonymous-NF
no factor from 2^67 to 2^68
2009-07-28raymondfNF
no factor from 2^66 to 2^67
2009-07-23Team_Elteor_Borislavj~ElteorNF
no factor from 2^65 to 2^66
2009-04-11Adel El-AtawyNF
no factor from 2^64 to 2^65
2009-04-11Adel El-AtawyNF
no factor from 2^63 to 2^64