4 937 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
224209400033890009931837488284049711636925260561	48	157.3	2009-06-02 00:57:58

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	15749 / 40830

Estimated T-Level: 51.9 ⓘ

TF below 2^168 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	2D55	0
Verified (Factored)		George Woltman	F98FEBBF3C0A2D55	0
Verified (Factored)		Brian J. Beesley	F98FEBBF3C0A2D55	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	FC88DF1B88895A3F	1	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	FC88DF1B88895A3F	1	0	1	3
Verified	2017-12-07	ATH	FC88DF1B88895A3F	1	2072	1	3
Verified	2020-04-17	Oliver Kruse	07705AC08874DF59	1	4219	5	3
Verified	2024-02-03	Wentao Huang	07705AC08874DF59	1	501	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M4937/224209400033890009931837488284049711636925260561 : 07705AC08874DF59 PRP: Verified PRP without proof (small exponent)
2023-05-31	-Anonymous-	NF-PM1	B1=64000000000, B2=642189744639793350
2021-05-18	firejuggler	NF-PM1	B1=100000000, B2=6100000000
2020-04-17	Oliver Kruse	C-PRP	M4937/224209400033890009931837488284049711636925260561 : 07705AC08874DF59 PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M4937/224209400033890009931837488284049711636925260561 : FC88DF1B88895A3F PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M4937/224209400033890009931837488284049711636925260561 : FC88DF1B88895A3F PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M4937/known_factors : FC88DF1B88895A3F PRP without proof (not generated)
2009-06-02	unconnected	F-ECM	Factor: 224209400033890009931837488284049711636925260561