2 795 561 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
201280393	9	27.6	old
2504822657	10	31.2	2008-09-07 19:41:52
410142345433	12	38.6	2008-09-07 19:41:52
41004282267781065367	20	65.2	2018-06-28 12:14:42
128853810050602267937	21	66.8	2020-09-23 11:40:14

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-21	Oliver Kruse	743BFDD356957852	3	1645281	5	3
Verified (Factored)	2017-12-06	kkmrkkblmbrbk	743BFDD356957852	3	2056487	5	3
Verified (Factored)	2018-06-28	francijezek	743BFDD356957852	4	792	5	3
Verified (Factored)	2018-07-02	_p95holder_	743BFDD356957852	4	1628824	5	3
Verified	2020-09-23	mrh	743BFDD356957852	5	2175049	5	3

History

Date	User	Type	Result
2023-01-21	USAFSS	NF-PM1	B1=288000, B2=226423890
2020-09-23	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-23	mrh	C-PRP	M2795561/201280393/2504822657/410142345433/41004282267781065367/128853810050602267937 : 743BFDD356957852 PRP proof power = 7 PRP: Verified Proof certified good
2020-09-23	TJAOI	F	Factor: 128853810050602267937 / TF: 66-67
2018-07-02	_p95holder_	C-PRP	M2795561/201280393/2504822657/410142345433/41004282267781065367 : 743BFDD356957852 PRP: Verified (Factored) PRP without proof (not generated)
2018-06-28	francijezek	C-PRP	M2795561/201280393/2504822657/410142345433/41004282267781065367 : 743BFDD356957852 PRP: Verified (Factored) PRP without proof (not generated)
2018-06-28	TJAOI	F	Factor: 41004282267781065367 / TF: 65-66
2017-12-06	kkmrkkblmbrbk	C-PRP	M2795561/201280393/2504822657/410142345433 : 743BFDD356957852 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-21	Oliver Kruse	C-PRP	M2795561/201280393/2504822657/410142345433 : 743BFDD356957852 PRP: Verified (Factored) PRP without proof (not generated)
2008-09-07	Will Edgington	F	Factor: 410142345433
2008-09-07	Will Edgington	F	Factor: 2504822657