4 701 589 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
112838137	9	26.7	old
6632435464208129	16	52.6	2014-08-16 11:47:00
100240635751994112383	21	66.4	2020-03-26 16:35:03
64063318785900880229279	23	75.8	2019-04-10 21:26:49

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

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

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-18	kkmrkkblmbrbk	C988150CD0BB015B	2	233244	5	3
Verified (Factored)	2018-03-08	ATH	C988150CD0BB015B	2	52075	5	3
Verified (Factored)	2019-04-11	Ruzovej	C988150CD0BB015B	3	488337	5	3
Verified	2020-03-28	AbsolutXTR	C988150CD0BB015B	4	142935	5	3

History

Date	User	Type	Result
2022-09-25	USAFSS	NF-PM1	B1=240000, B2=156930060
2020-03-28	AbsolutXTR	C-PRP	M4701589/112838137/6632435464208129/64063318785900880229279/100240635751994112383 : C988150CD0BB015B PRP: Verified PRP without proof (not generated)
2020-03-26	TJAOI	F	Factor: 100240635751994112383 / TF: 66-67
2019-04-11	Ruzovej	C-PRP	M4701589/112838137/6632435464208129/64063318785900880229279 : C988150CD0BB015B PRP: Verified PRP without proof (not generated)
2019-04-10	ATH	F-ECM	Factor: 64063318785900880229279 / (ECM curve 2, B1=50000, B2=5000000, Sigma=4793311948465115)
2018-03-08	ATH	C-PRP	M4701589/112838137/6632435464208129 : C988150CD0BB015B PRP: Verified PRP without proof (not generated)
2017-11-18	kkmrkkblmbrbk	C-PRP	M4701589/112838137/6632435464208129 : C988150CD0BB015B PRP: Verified PRP without proof (not generated)
2014-08-16	TJAOI	F	Factor: 6632435464208129