4 639 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
194839	6	17.6	old
1557006127	10	30.5	old
7822790874583	13	42.8	old
333318151608048911647033115337921021257	39	128.0	2009-05-06 16:49:04

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	13969 / 40830

Estimated T-Level: 51.7 ⓘ

TF below 2^167 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	44CD353B09351B8B	4	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	44CD353B09351B8B	4	0	1	3
Verified	2017-12-07	ATH	44CD353B09351B8B	4	2461	1	3
Verified	2020-04-17	Oliver Kruse	8DA0BEFF052A4F90	4	1520	5	3
Verified	2024-02-03	Wentao Huang	8DA0BEFF052A4F90	4	2861	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M4639/194839/1557006127/7822790874583/333318151608048911647033115337921021257 : 8DA0BEFF052A4F90 PRP: Verified PRP without proof (small exponent)
2023-05-26	-Anonymous-	NF-PM1	B1=69000000000, B2=691971895408493700
2021-07-08	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M4639/194839/1557006127/7822790874583/333318151608048911647033115337921021257 : 8DA0BEFF052A4F90 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M4639/194839/1557006127/7822790874583/333318151608048911647033115337921021257 : 44CD353B09351B8B PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M4639/194839/1557006127/7822790874583/333318151608048911647033115337921021257 : 44CD353B09351B8B PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M4639/known_factors : 44CD353B09351B8B PRP without proof (not generated)
2009-05-06	unconnected	F-ECM	Factor: 333318151608048911647033115337921021257