125 737 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
5783903	7	22.5	old
4572880196195871977	19	62.0	2010-04-09 07:37:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	214 / 1566

Estimated T-Level: 30.7 ⓘ

TF below 2^97 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	8C64D4EF025DD630	2	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	8C64D4EF025DD630	2	59154	1	3
Verified	2020-04-17	Oliver Kruse	355C493A7CCE930E	2	3843	5	3
Verified	2024-02-03	Wentao Huang	355C493A7CCE930E	2	112038	5	3

History

Date	User	Type	Result
2024-02-03	Chuck	CERT	PRP Certification Proof certified good
2024-02-03	Wentao Huang	C-PRP	M125737/5783903/4572880196195871977 : 355C493A7CCE930E PRP proof power = 5 PRP: Verified Proof certified good
2020-04-17	Oliver Kruse	C-PRP	M125737/5783903/4572880196195871977 : 355C493A7CCE930E PRP: Verified PRP without proof (small exponent)
2017-10-13	kkmrkkblmbrbk	C-PRP	M125737/5783903/4572880196195871977 : 8C64D4EF025DD630 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M125737/5783903/4572880196195871977 : 8C64D4EF025DD630 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M125737/5783903/4572880196195871977 : 8C64D4EF025DD630 PRP without proof (not generated)
2017-03-15	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2010-04-09	Bud	F-ECM	Factor: 4572880196195871977