2 100 941 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
12605647	8	23.6	old
271454182847	12	38.0	2008-07-14 20:20:25
240468035980266137663	21	67.7	2019-08-30 18:59:37

ECM

Digits	B1	Curves
25	50000	120 / 280

Estimated T-Level: 22.1 ⓘ

TF below 2^69 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-07	Oliver Kruse	09006D1283F81C2B	2	0	1	3
Verified (Factored)	2017-11-17	kkmrkkblmbrbk	09006D1283F81C2B	2	1450768	1	3
Verified	2019-08-31	mnd9	5DAEB3FB032DC4B9	3	765406	5	3
Verified	2019-09-01	kkmrkkblmbrbk	5DAEB3FB032DC4B9	3	386528	5	3

History

Date	User	Type	Result
2019-09-01	kkmrkkblmbrbk	C-PRP	M2100941/12605647/271454182847/240468035980266137663 : 5DAEB3FB032DC4B9 PRP: Verified PRP without proof (not generated)
2019-08-31	mnd9	C-PRP	M2100941/12605647/271454182847/240468035980266137663 : 5DAEB3FB032DC4B9 PRP: Verified PRP without proof (not generated)
2019-08-30	MarkS	F-ECM	Factor: 240468035980266137663 / (ECM curve 2, B1=50000, B2=5000000)
2017-11-17	kkmrkkblmbrbk	C-PRP	M2100941/12605647/271454182847 : 09006D1283F81C2B PRP: Verified PRP without proof (not generated)
2017-10-07	Oliver Kruse	C-PRP	M2100941/12605647/271454182847 : 09006D1283F81C2B PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-14	George Woltman	F-ECM	Factor: 271454182847