2 139 409 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
1097409846551	13	40.0	old
2496706138555892722120609	25	81.0	2022-01-26 01:44:20

ECM

Digits	B1	Curves
25	50000	101 / 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	EB3D669FC9F765C5	1	0	1	3
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	EB3D669FC9F765C5	1	638413	1	3
Verified	2022-01-28	SRJ2877	9E30CA16F66F1585	2	52499	5	3

History

Date	User	Type	Result
2022-01-28	boincPlayer	CERT	PRP Certification Proof certified good
2022-01-28	SRJ2877	C-PRP	M2139409/1097409846551/2496706138555892722120609 : 9E30CA16F66F1585 PRP proof power = 7 PRP: Verified Proof certified good
2022-01-26	MarkS	F-ECM	Factor: 2496706138555892722120609 / (ECM curve 7, B1=50000, B2=5000000, Sigma=665675567869304)
2017-11-18	kkmrkkblmbrbk	C-PRP	M2139409/1097409846551 : EB3D669FC9F765C5 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-08	Oliver Kruse	C-PRP	M2139409/1097409846551 : EB3D669FC9F765C5 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-28	alpertron	NF-PM1	B1=500000, B2=15000000, E=12