1 907 573 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
686726281	9	29.4	old
1374169467900007	16	50.3	2014-05-23 11:48:35
1682004340905866599103	22	70.5	2020-10-26 19:39:13

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	A60D9D5B106D8138	2	0	1	3
Verified (Factored)	2017-11-09	kkmrkkblmbrbk	A60D9D5B106D8138	2	1076228	1	3
Verified	2020-10-26	ATH	354ADEE805664DA6	3	374815	5	3

History

Date	User	Type	Result
2021-07-01	Dylan Delgado	NF-PM1	B1=2000000, B2=262000000
2021-04-07	Dylan Delgado	NF-PM1	B1=1000000, B2=71000000
2020-10-26	Franklin Webber	CERT	PRP Certification Proof certified good
2020-10-26	ATH	C-PRP	M1907573/686726281/1374169467900007/1682004340905866599103 : 354ADEE805664DA6 PRP proof power = 7 PRP: Verified Proof certified good
2020-10-26	_p95holder_	F-ECM	Factor: 1682004340905866599103 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-09	kkmrkkblmbrbk	C-PRP	M1907573/686726281/1374169467900007 : A60D9D5B106D8138 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1907573/686726281/1374169467900007 : A60D9D5B106D8138 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-05-23	TJAOI	F	Factor: 1374169467900007