1 969 819 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
1413552077744503	16	50.3	old
15692471667838039	17	53.8	2014-10-13 11:49:01
96784733255519443681	20	66.4	2015-09-29 01:17:26
1637896554953840134893143	25	80.4	2021-11-15 09:01:12
140074539813319639653152565871	30	96.8	2024-04-02 09:48:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	106 / 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)	2017-10-05	Oliver Kruse	731EC023FE9057A8	3	0	1	3
Verified (Factored)	2017-11-15	kkmrkkblmbrbk	731EC023FE9057A8	3	1949951	1	3
Verified (Factored)	2021-11-15	MarkS	D1D88DB11DB2E30C	4	948397	5	3
Verified	2024-04-02	Naegi Makoto	D1D88DB11DB2E30C	5	1054671	5	3

P-1 factors

Date	Factor	B1	B2
2015-09-29	96784733255519443681	500000	15000000

History

Date	User	Type	Result
2024-04-02	IC_9	CERT	PRP Certification Proof certified good
2024-04-02	Naegi Makoto	C-PRP	M1969819/1413552077744503/15692471667838039/96784733255519443681/1637896554953840134893143/140074539813319639653152565871 : D1D88DB11DB2E30C PRP proof power = 7 PRP: Verified Proof certified good
2024-04-02	TJAOI	F-ECM	Factor: 140074539813319639653152565871 / (ECM curve 1, B1=250000, B2=40000000, Sigma=7153837827350111)
2021-11-15	Dry Creek Photo	CERT	PRP Certification Proof certified good
2021-11-15	MarkS	C-PRP	M1969819/1413552077744503/15692471667838039/96784733255519443681/1637896554953840134893143 : D1D88DB11DB2E30C PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2021-11-15	MarkS	F-ECM	Factor: 1637896554953840134893143 / (ECM curve 4, B1=50000, B2=5000000, Sigma=6875439987286229)
2017-11-15	kkmrkkblmbrbk	C-PRP	M1969819/1413552077744503/15692471667838039/96784733255519443681 : 731EC023FE9057A8 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1969819/1413552077744503/15692471667838039/96784733255519443681 : 731EC023FE9057A8 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1969819/1413552077744503/15692471667838039/96784733255519443681 : 731EC023FE9057A8 PRP without proof (not generated)
2015-09-29	alpertron	F-PM1	Factor: 96784733255519443681 / (P-1, B1=500000, B2=15000000, E=12)
2014-10-13	TJAOI	F	Factor: 15692471667838039 / TF: 53-54