5 377 121 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
45969711360678141704885804777	29	95.2	2019-07-05 18:47:26

ECM

Digits	B1	Curves
25	50000	9 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-08-09	Thomas J Engelsma	9175E5C00A58CE53	0
Verified (Factored)	2000-06-23	Boris Tschirschwitz	9175E5C00A58CE53	2350727

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-07-06	Niels_Mache_Nextcloud	CA04865378AE9EEE	1	2363365	5	3
Verified	2019-07-06	ATH	CA04865378AE9EEE	1	1209426	5	3

P-1 factors

Date	Factor	B1	B2
2019-07-05	45969711360678141704885804777	85000	1211250

History

Date	User	Type	Result
2019-07-06	ATH	C-PRP	M5377121/45969711360678141704885804777 : CA04865378AE9EEE PRP: Verified PRP without proof (not generated)
2019-07-06	Niels_Mache_Nextcloud	C-PRP	M5377121/45969711360678141704885804777 : CA04865378AE9EEE PRP: Verified PRP without proof (not generated)
2019-07-05	Ivan M	F-PM1	Factor: 45969711360678141704885804777 / (P-1, B1=85000, B2=1211250, E=6)
2018-06-19	ramgeis	NF	no factor from 2^67 to 2^68
2016-08-11	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-08-19	snme2pm1	NF	no factor from 2^65 to 2^66
2014-12-24	VictordeHollander	NF	no factor from 2^64 to 2^65
2014-12-24	VictordeHollander	NF	no factor from 2^63 to 2^64
2010-09-29	Squeeky_Squirrel	NF-PM1	B1=60000, B2=960000, E=6
2009-05-19	GrunwalderGIMP	NF	no factor from 2^62 to 2^63