2 154 871 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
137657469223	12	37.0	old
330677884177	12	38.3	2008-07-14 20:20:52
460393241507384876057	21	68.6	2022-12-03 04:26:39

ECM

Digits	B1	Curves
25	50000	98 / 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)	2017-10-08	Oliver Kruse	2083A65F06B88BDF	2	0	1	3
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	2083A65F06B88BDF	2	1095547	1	3
Verified	2022-12-08	LordJulius	9D55EAB805042B88	3	427713	5	3

History

Date	User	Type	Result
2022-12-08	Stockmeyer	CERT	PRP Certification Proof certified good
2022-12-08	LordJulius	C-PRP	M2154871/137657469223/330677884177/460393241507384876057 : 9D55EAB805042B88 PRP proof power = 7 PRP: Verified Proof certified good
2022-12-03	_p95holder_	F-ECM	Factor: 460393241507384876057 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-18	kkmrkkblmbrbk	C-PRP	M2154871/137657469223/330677884177 : 2083A65F06B88BDF PRP: Verified (Factored) PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2154871/137657469223/330677884177 : 2083A65F06B88BDF PRP: Verified (Factored) PRP without proof (not generated)
2016-03-27	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-14	George Woltman	F-ECM	Factor: 330677884177