4 953 979 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
1792007399139823968760271	25	80.6	2017-05-22 02:48:18

ECM

Digits	B1	Curves
25	50000	8 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Walter Meier	5D6FF3B1167EED8F	0
Verified (Factored)	1998-05-23	Ken Lord	5D6FF3B1167EED8F	0
Verified (Factored)	2015-11-13	MadPoo	5D6FF3B1167EED8F	3850143

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	alpertron	07CD96DA9471584F	1	0	1	3
Verified	2018-01-09	kkmrkkblmbrbk	07CD96DA9471584F	1	3142266	1	3

History

Date	User	Type	Result
2018-01-09	kkmrkkblmbrbk	C-PRP	M4953979/1792007399139823968760271 : 07CD96DA9471584F PRP: Verified PRP without proof (not generated)
2017-10-26	Yxinity	NF	no factor from 2^66 to 2^67
2017-09-28	alpertron	C-PRP	M4953979/1792007399139823968760271 : 07CD96DA9471584F PRP: Verified PRP without proof (not generated)
2017-05-22	bam	F-ECM	Factor: 1792007399139823968760271 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^61
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-11-13	MadPoo	C-LL	5D6FF3B1167EED8F
2015-07-28	snme2pm1	NF	no factor from 2^65 to 2^66
2015-03-08	mikr	NF-PM1	B1=1200000, B2=39750000, E=12
2015-01-02	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-02	VictordeHollander	NF	no factor from 2^63 to 2^64
2011-11-06	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-07-23	Squeeky_Squirrel	NF-PM1	B1=60000, B2=960000, E=6
2009-12-27	markr	NF	no factor from 2^61 to 2^62
2009-08-29	Carsten Kossendey	NF-PM1	B1=30000, B2=435000