2 608 663 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
1528676519	10	30.5	old
44391724498487779736863	23	75.2	2024-04-16 09:32:44

ECM

Digits	B1	Curves
25	50000	87 / 280

Estimated T-Level: 21.6 ⓘ

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
composite	Verified (Factored)	2017-10-15	Oliver Kruse	524319415639E7B7	1	788951	5	3
composite	Verified (Factored)	2017-12-02	kkmrkkblmbrbk	524319415639E7B7	1	402900	5	3
composite	Verified	2024-04-16	Anton Tsvetkov	524319415639E7B7	2	1329934	5	3

History

Date	User	Type	Result
2024-04-16	S147127	CERT	PRP Certification Proof certified good
2024-04-16	Anton Tsvetkov	C-PRP	M2608663/1528676519/44391724498487779736863 : 524319415639E7B7 PRP proof power = 7 PRP: Verified Proof certified good
2024-04-16	Anton Tsvetkov	F-ECM	Factor: 44391724498487779736863 / (ECM curve 11, B1=50000, B2=14967225, Edwards Sigma=1530113604660246)
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	kkmrkkblmbrbk	C-PRP	M2608663/1528676519 : 524319415639E7B7 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-15	Oliver Kruse	C-PRP	M2608663/1528676519 : 524319415639E7B7 PRP: Verified (Factored) PRP without proof (not generated)