1 939 909 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
303757575480788269129	21	68.0	2020-01-29 09:09:13

ECM

Digits	B1	Curves
25	50000	271 / 280

Estimated T-Level: 24.8 ⓘ

TF below 2^78 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Ekim Sahin	2A69913940794CAE	0
Verified (Factored)	1998-12-21	Robert Mutschler	2A69913940794CAE	1313137
Verified (Factored)	2015-06-27	MadPoo	2A69913940794CAE	1271050

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-01-30	Jinyuan Wang	35C7552E668AD014	1	1076272	5	3
Verified	2020-01-30	ANONYMOUS	35C7552E668AD014	1	475651	5	3
Verified	2020-02-01	Luigi Morelli	35C7552E668AD014	1	1877466	5	3

History

Date	User	Type	Result
2020-02-01	Luigi Morelli	C-PRP	M1939909/303757575480788269129 : 35C7552E668AD014 PRP: Verified PRP without proof (not generated)
2020-01-30	ANONYMOUS	C-PRP	M1939909/303757575480788269129 : 35C7552E668AD014 PRP: Verified PRP without proof (not generated)
2020-01-30	Jinyuan Wang	C-PRP	M1939909/303757575480788269129 : 35C7552E668AD014 PRP: Verified PRP without proof (not generated)
2020-01-29	mnd9	F-ECM	Factor: 303757575480788269129 / (ECM curve 2, B1=50000, B2=5000000, Sigma=1979007775881254)
2019-05-11	chuenkit	NF	no factor from 2^67 to 2^68
2018-02-06	mikr	NF-PM1	B1=8000000, B2=320000000, E=12
2018-01-27	Joss	NF-PM1	B1=1939909, B2=30000000, E=12
2017-12-04	TJAOI	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-09-05	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-27	MadPoo	C-LL	2A69913940794CAE
2015-05-07	lycorn	NF	no factor from 2^64 to 2^65
2015-05-07	lycorn	NF	no factor from 2^63 to 2^64
2011-11-14	kurly	NF-PM1	B1=1000000, B2=30000000, E=12
2011-08-27	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-01-29	S485122	NF	no factor from 2^60 to 2^61