12 227 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
108029713722289	15	46.6	old
2317364682400348583148527	25	80.9	2008-08-29 02:24:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1282 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	AAC3335B88CFF940	2	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	AAC3335B88CFF940	2	0	1	3
Verified	2017-12-07	ATH	AAC3335B88CFF940	2	6162	1	3
Unverified	2020-04-17	Oliver Kruse	252E3E077E8B35__	2	609	5	3

History

Date	User	Type	Result
2023-04-06	-Anonymous-	NF-PM1	B1=100000000000, B2=121982729876067060
2022-05-17	aperson1	F-ECM	Factor: 108029713722289 / (ECM curve 1, B1=10000000, B2=1020000000)
2020-04-17	Oliver Kruse	C-PRP	M12227/108029713722289/2317364682400348583148527 : 252E3E077E8B35__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M12227/108029713722289/2317364682400348583148527 : AAC3335B88CFF940 PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M12227/108029713722289/2317364682400348583148527 : AAC3335B88CFF940 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12227/108029713722289/2317364682400348583148527 : AAC3335B88CFF940 PRP without proof (not generated)
2016-09-09	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2008-08-29	-Anonymous-	F-ECM	Factor: 2317364682400348583148527