14 091 199 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
1259963550860335326082193	25	80.1	2021-09-09 20:27:54

ECM

Digits	B1	Curves
25	50000	23 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Bad	2002-01-02	Tom Mossberg	1591AC2F2694DD28	6185836
Verified (Factored)	2002-11-02	Michael Lawrence	F4E995759D6811CC	13612596
Verified (Factored)	2005-04-26	Sturle Sunde	F4E995759D6811CC	10371474

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2022-12-23	Perig	6FE0F7505E44EE88	1	11540370	5	3

History

Date	User	Type	Result
2022-12-23	SRS Technology	CERT	PRP Certification Proof certified good
2022-12-23	Perig	C-PRP	M14091199/1259963550860335326082193 : 6FE0F7505E44EE88 PRP proof power = 8 PRP: Verified Proof certified good
2021-09-09	masser	F-PP1	Start=2/7, B1=1000000, B2=53000000, Factor: 1259963550860335326082193
2021-05-09	masser	NF	no factor from 2^71 to 2^72
2021-01-04	masser	NF-PM1	B1=7000000, B2=210000000
2020-12-02	masser	NF-PM1	B1=580000, B2=13600000, e=12
2020-07-30	masser	NF	no factor from 2^70 to 2^71
2020-07-30	masser	NF	no factor from 2^69 to 2^70
2018-02-15	ramgeis	NF	no factor from 2^68 to 2^69
2018-02-15	ramgeis	NF	no factor from 2^67 to 2^68
2015-08-23	Tha	NF	no factor from 2^66 to 2^67
2014-07-22	Nesowa	NF	no factor from 2^65 to 2^66