7 231 183 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
9005268647119163470188334069180404853639	40	132.7	2023-01-01 11:58:15

ECM

Digits	B1	Curves
25	50000	6 / 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)	1999-05-30	S05739	E59B2BE6C145A5EB	0
Verified (Factored)	2003-02-16	Shane Sanford	E59B2BE6C145A5EB	2158217

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-01-06	Perig	0165E605040FA28E	1	2408847	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-01	9005268647119163470188334069180404853639	16000000	16143964200

History

Date	User	Type	Result
2023-01-06	curtisc	CERT	PRP Certification Proof certified good
2023-01-06	Perig	C-PRP	M7231183/9005268647119163470188334069180404853639 : 0165E605040FA28E PRP proof power = 8 PRP: Verified Proof certified good
2023-01-01	yoyorocks1	F-PM1	Factor: 9005268647119163470188334069180404853639 / (P-1, B1=16000000, B2=16143964200)
2021-12-27	-Anonymous-	NF	no factor from 2^72 to 2^73
2020-11-23	Smok_bmv	NF	no factor from 2^71 to 2^72
2020-11-23	Smok_bmv	NF	no factor from 2^70 to 2^71
2020-11-23	Smok_bmv	NF	no factor from 2^69 to 2^70
2020-03-27	TJAOI	NF	no factor from 2^68 to 2^69
2020-01-17	storm5510	NF-PM1	B1=385000, B2=8470000, E=12
2018-07-23	ramgeis	NF	no factor from 2^67 to 2^68
2016-10-13	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-06-16	VictordeHollander	NF	no factor from 2^65 to 2^66
2013-11-14	David Campeau	NF	no factor from 2^64 to 2^65
2013-11-03	Nesowa	NF	no factor from 2^63 to 2^64
2012-07-28	Squeeky_Squirrel	NF-PM1	B1=85000, B2=1593750, E=6