6 163 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
591649	6	19.2	old
617087009308577784079	21	69.1	old
11421512252292347913535423711	29	93.2	old
31634265894130941020602933010416951	35	114.6	2016-11-21 04:16:25

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1429 / 9201

Estimated T-Level: 40.8 ⓘ

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	2017-09-20	kkmrkkblmbrbk	B8CF24806A41D89B	4	0	1	3
Verified	2017-09-25	George Woltman	B8CF24806A41D89B	4	662	1	3
Verified	2017-10-02	kkmrkkblmbrbk	B8CF24806A41D89B	4	0	1	3
Verified	2020-04-17	Oliver Kruse	3710DF041C3FA39B	4	1549	5	3
Verified	2024-02-03	Wentao Huang	3710DF041C3FA39B	4	3290	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : 3710DF041C3FA39B PRP: Verified PRP without proof (small exponent)
2023-07-30	-Anonymous-	NF-PM1	B1=40000000000, B2=169617550478676300
2021-07-09	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : 3710DF041C3FA39B PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : B8CF24806A41D89B PRP: Verified PRP without proof (not generated)
2017-09-25	George Woltman	C-PRP	M6163/known_factors : B8CF24806A41D89B PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M6163/591649/617087009308577784079/11421512252292347913535423711/31634265894130941020602933010416951 : B8CF24806A41D89B PRP: Verified PRP without proof (not generated)
2016-11-21	kkmrkkblmbrbk	F-ECM	Factor: 31634265894130941020602933010416951 / (ECM curve 479, B1=3000000, B2=300000000)