1 903 081 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
41867783	8	25.3	old
135377570017	12	37.0	2008-07-15 07:48:01
1558264855632031	16	50.5	2014-05-28 11:42:06
210011019266895338599	21	67.5	2020-09-05 20:34:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	AEC3EE2AC697F902	3	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	AEC3EE2AC697F902	3	85983	1	3
Verified	2020-09-06	jvang	AF412C9E82089051	4	978219	5	3

History

Date	User	Type	Result
2021-06-30	Dylan Delgado	NF-PM1	B1=2000000, B2=262000000
2020-09-06	Ben Delo	CERT	PRP Certification Proof certified good
2020-09-06	jvang	C-PRP	M1903081/41867783/135377570017/1558264855632031/210011019266895338599 : AF412C9E82089051 PRP proof power = 7 PRP: Verified Proof certified good
2020-09-05	_p95holder_	F-ECM	Factor: 210011019266895338599 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M1903081/41867783/135377570017/1558264855632031 : AEC3EE2AC697F902 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1903081/41867783/135377570017/1558264855632031 : AEC3EE2AC697F902 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-05-28	TJAOI	F	Factor: 1558264855632031
2008-07-15	J Feitsma	F	Factor: 135377570017