4 812 061 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
10114412393399952991	20	63.1	2009-09-10 18:27:30
273983277714860750205176100217	30	97.8	2022-10-28 05:49:52

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	Shift
Verified (Factored)	1998-12-13	Kees Couprie	4F7F665FA6E5F046	0
Verified (Factored)	2000-03-22	Buddy Morris	4F7F665FA6E5F046	76292

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-19	kkmrkkblmbrbk	6D21D103FC6B6470	1	3615464	5	3
Verified (Factored)	2018-03-25	trebor	6D21D103FC6B6470	1	209927	5	3
Verified	2022-11-04	junkman2usa	6D21D103FC6B6470	2	2873969	5	3

P-1 factors

Date	Factor	B1	B2
2022-10-28	273983277714860750205176100217	260000	167750730

History

Date	User	Type	Result
2022-11-04	junkman2usa	C-PRP	M4812061/10114412393399952991/273983277714860750205176100217 : 6D21D103FC6B6470 PRP: Verified PRP without proof (not generated)
2022-10-28	USAFSS	F-PM1	Factor: 273983277714860750205176100217 / (P-1, B1=260000, B2=167750730)
2018-03-25	trebor	C-PRP	M4812061/10114412393399952991 : 6D21D103FC6B6470 PRP: Verified PRP without proof (not generated)
2017-11-19	kkmrkkblmbrbk	C-PRP	M4812061/10114412393399952991 : 6D21D103FC6B6470 PRP: Verified PRP without proof (not generated)
2009-09-10	Carsten Kossendey	F-PM1	Factor: 10114412393399952991