2 205 187 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
233749823	9	27.8	old
99403179116009	14	46.5	2014-02-13 14:46:17
7044907014841414350479	22	72.6	2022-05-15 23:10:34

ECM

Digits	B1	Curves
25	50000	94 / 280

Estimated T-Level: 21.7 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-09	Oliver Kruse	F5CEA9EBF196F2FB	2	0	1	3
Verified (Factored)	2017-11-20	kkmrkkblmbrbk	F5CEA9EBF196F2FB	2	1389784	1	3
Verified	2022-05-15	aperson1	32B2DEA287D31272	3	681139	5	3

History

Date	User	Type	Result
2022-05-16	hordkhen	CERT	PRP Certification Proof certified good
2022-05-15	aperson1	C-PRP	M2205187/233749823/99403179116009/7044907014841414350479 : 32B2DEA287D31272 PRP proof power = 7 PRP: Verified Proof certified good
2022-05-15	debrouxl	F-ECM	Factor: 7044907014841414350479 / (ECM curve 6, B1=50000, B2=7150000, Sigma=2569933481172644)
2021-07-02	Dylan Delgado	NF-PM1	B1=2000000, B2=242000000
2021-06-28	Dylan Delgado	NF-PM1	B1=1000000, B2=106000000
2017-11-20	kkmrkkblmbrbk	C-PRP	M2205187/233749823/99403179116009 : F5CEA9EBF196F2FB PRP: Verified (Factored) PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2205187/233749823/99403179116009 : F5CEA9EBF196F2FB PRP: Verified (Factored) PRP without proof (not generated)
2016-04-11	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-02-13	TJAOI	F	Factor: 99403179116009