4 330 489 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
16209584348699004217	20	63.8	2017-05-16 11:24:09
302216363846400099977	21	68.0	2009-08-01 23:37:09

ECM

Digits	B1	Curves
25	50000	3 / 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)	1998-12-27	Doug Thompson	604B0AE7FB16F52B	0
Verified (Factored)	2000-03-22	Ivan Clarke	604B0AE7FB16F52B	2590436

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-28	alpertron	46EDCD37CFEC4EC2	2	0	1	3
Verified	2017-12-31	kkmrkkblmbrbk	46EDCD37CFEC4EC2	2	1880088	1	3

History

Date	User	Type	Result
2023-02-12	USAFSS	NF-PM1	B1=240000, B2=124122570
2022-06-21	LordJulius	NF	no factor from 2^61 to 2^63
2017-12-31	kkmrkkblmbrbk	C-PRP	M4330489/302216363846400099977/16209584348699004217 : 46EDCD37CFEC4EC2 PRP: Verified PRP without proof (not generated)
2017-09-28	alpertron	C-PRP	M4330489/16209584348699004217/302216363846400099977 : 46EDCD37CFEC4EC2 PRP: Verified PRP without proof (not generated)
2017-05-16	TJAOI	F	Factor: 16209584348699004217 / TF: 63-64
2009-08-01	Carsten Kossendey	F-PM1	Factor: 302216363846400099977