2 183 231 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
628770529	9	29.2	old
178368211830799655130439	24	77.2	2022-05-16 01:33:56

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	867FD8DBB0A3F5EB	1	0	1	3
Verified (Factored)	2017-11-19	kkmrkkblmbrbk	867FD8DBB0A3F5EB	1	80055	1	3
Verified	2022-05-16	aperson1	E18DA566E7D582C0	2	1330562	5	3

History

Date	User	Type	Result
2022-05-16	marcus aus bonn	CERT	PRP Certification Proof certified good
2022-05-16	aperson1	C-PRP	M2183231/628770529/178368211830799655130439 : E18DA566E7D582C0 PRP proof power = 7 PRP: Verified Proof certified good
2022-05-16	debrouxl	F-ECM	Factor: 178368211830799655130439 / (ECM curve 5, B1=50000, B2=6650000, Sigma=363752474486794)
2017-11-19	kkmrkkblmbrbk	C-PRP	M2183231/628770529 : 867FD8DBB0A3F5EB PRP: Verified (Factored) PRP without proof (not generated)
2017-10-09	Oliver Kruse	C-PRP	M2183231/628770529 : 867FD8DBB0A3F5EB PRP: Verified (Factored) PRP without proof (not generated)
2016-03-24	alpertron	NF-PM1	B1=500000, B2=15000000, E=12