2 169 161 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
1168414841693081	16	50.1	old
157649058723013687	18	57.1	2015-05-27 11:10:57
20925079199669335261999	23	74.1	2022-02-16 21:39:47

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	E005059BD610D389	2	0	1	3
Verified (Factored)	2017-11-19	kkmrkkblmbrbk	E005059BD610D389	2	1305351	1	3
Verified	2022-02-18	_p95holder_	22E25E953F7B9619	3	603962	5	3
Verified	2022-02-23	Oliver Kruse	22E25E953F7B9619	3	327941	5	3

History

Date	User	Type	Result
2022-02-23	Andre	CERT	PRP Certification Proof certified good
2022-02-23	Oliver Kruse	C-PRP	M2169161/1168414841693081/157649058723013687/20925079199669335261999 : 22E25E953F7B9619 PRP proof power = 7 PRP: Verified Proof certified good
2022-02-18	_p95holder_	C-PRP	M2169161/1168414841693081/157649058723013687/20925079199669335261999 : 22E25E953F7B9619 PRP: Verified PRP without proof (not generated)
2022-02-16	_p95holder_	F-ECM	Factor: 20925079199669335261999 / (ECM curve 7, B1=50000, B2=5000000)
2017-11-19	kkmrkkblmbrbk	C-PRP	M2169161/1168414841693081/157649058723013687 : E005059BD610D389 PRP: Verified PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2169161/1168414841693081/157649058723013687 : E005059BD610D389 PRP: Verified PRP without proof (not generated)
2016-04-02	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-05-27	TJAOI	F	Factor: 157649058723013687 / TF: 57-58