2 227 301 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
9143533883609	13	43.1	old
117148239584834675447	21	66.7	2020-07-15 07:13:43
198453506725227999935663	24	77.4	2022-10-15 06:17:40

ECM

Digits	B1	Curves
25	50000	99 / 280

Estimated T-Level: 21.8 ⓘ

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	04C1F6D68BD14E5E	1	0	1	3
Verified (Factored)	2017-11-20	kkmrkkblmbrbk	04C1F6D68BD14E5E	1	1483032	1	3
Verified (Factored)	2020-07-15	M Miller	21288AA8A6249597	2	1225017	5	3
Verified (Factored)	2020-07-16	marssystems	21288AA8A6249597	2	94418	5	3
Verified	2022-10-15	Kevin_9611	21288AA8A6249597	3	924796	5	3
Verified	2022-10-16	_p95holder_	21288AA8A6249597	3	1817403	5	3

History

Date	User	Type	Result
2022-10-16	_p95holder_	C-PRP	M2227301/9143533883609/117148239584834675447/198453506725227999935663 : 21288AA8A6249597 PRP: Verified PRP without proof (not generated)
2022-10-15	PCanalytics.com	CERT	PRP Certification Proof certified good
2022-10-15	Kevin_9611	C-PRP	M2227301/9143533883609/117148239584834675447/198453506725227999935663 : 21288AA8A6249597 PRP proof power = 7 PRP: Verified Proof certified good
2022-10-15	_p95holder_	F-ECM	Factor: 198453506725227999935663 / (ECM curve 5, B1=50000, B2=5000000)
2021-06-29	Dylan Delgado	NF-PM1	B1=1000000, B2=106000000
2020-07-16	marssystems	C-PRP	M2227301/9143533883609/117148239584834675447 : 21288AA8A6249597 PRP: Verified PRP without proof (not generated)
2020-07-15	M Miller	C-PRP	M2227301/9143533883609/117148239584834675447 : 21288AA8A6249597 PRP: Verified PRP without proof (not generated)
2020-07-15	TJAOI	F	Factor: 117148239584834675447 / TF: 66-67
2017-11-20	kkmrkkblmbrbk	C-PRP	M2227301/9143533883609 : 04C1F6D68BD14E5E PRP: Verified PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2227301/9143533883609 : 04C1F6D68BD14E5E PRP: Verified PRP without proof (not generated)
2016-04-07	alpertron	NF-PM1	B1=500000, B2=15000000, E=12