49 121 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
23249460511	11	34.4	old
1122859198567	13	40.0	2008-08-26 20:05:30
7703141208429442458889	22	72.7	2009-04-22 01:39:34

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	774 / 4588

Estimated T-Level: 35.8 ⓘ

TF below 2^114 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	16C35D5CCC03F5AA	3	0	1	3
Verified	2017-09-21	Oliver Kruse	16C35D5CCC03F5AA	3	0	1	3
Verified	2017-11-06	kkmrkkblmbrbk	16C35D5CCC03F5AA	3	26621	1	3
Unverified	2020-04-17	Oliver Kruse	7CD10A9D979893__	3	26785	5	3

History

Date	User	Type	Result
2023-05-07	JacobZ	NF-PM1	B1=720000000, B2=524479608402750
2020-04-17	Oliver Kruse	C-PRP	M49121/23249460511/1122859198567/7703141208429442458889 : 7CD10A9D979893__ PRP without proof (small exponent)
2017-11-06	kkmrkkblmbrbk	C-PRP	M49121/23249460511/1122859198567/7703141208429442458889 : 16C35D5CCC03F5AA PRP without proof (small exponent)
2017-09-21	Oliver Kruse	C-PRP	M49121/23249460511/1122859198567/7703141208429442458889 : 16C35D5CCC03F5AA PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M49121/23249460511/1122859198567/7703141208429442458889 : 16C35D5CCC03F5AA PRP without proof (not generated)
2016-10-02	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-04-22	Matthias Wurtinger	F-ECM	Factor: 7703141208429442458889
2008-08-26	-Anonymous-	F	Factor: 1122859198567