1 943 413 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
12169652207	11	33.5	old
309882532679586631	18	58.1	2015-08-11 11:20:56
90649073237337737335351	23	76.3	2021-02-06 09:56:31

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)	2017-10-05	Oliver Kruse	53236AF347C09D38	2	0	1	3
Verified (Factored)	2017-11-11	kkmrkkblmbrbk	53236AF347C09D38	2	1653127	1	3
Verified	2021-02-07	ViliamF	1C20654F7CD2CDBD	3	1893620	5	3

History

Date	User	Type	Result
2021-02-07	curtisc	CERT	PRP Certification Proof certified good
2021-02-07	ViliamF	C-PRP	M1943413/12169652207/309882532679586631/90649073237337737335351 : 1C20654F7CD2CDBD PRP proof power = 7 PRP: Verified Proof certified good
2021-02-06	_p95holder_	F-ECM	Factor: 90649073237337737335351 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-11	kkmrkkblmbrbk	C-PRP	M1943413/12169652207/309882532679586631 : 53236AF347C09D38 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1943413/12169652207/309882532679586631 : 53236AF347C09D38 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-08-11	TJAOI	F	Factor: 309882532679586631 / TF: 58-59