4 866 973 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
277728947273	12	38.0	old
2770629068839231	16	51.3	2014-06-21 11:49:21
14300023341616159671919	23	73.6	2019-07-11 11:37:32

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	BE71927CC6182CC5	2	0	1	3
Verified (Factored)	2018-04-02	kracker	BE71927CC6182CC5	2	2859765	1	3
Verified	2019-07-17	Brett Walker	F93584BA79A2C69B	3	4734515	5	3
Verified	2019-07-19	arnaud	F93584BA79A2C69B	3	448045	5	3

History

Date	User	Type	Result
2023-08-15	USAFSS	NF-PM1	B1=256000, B2=105522060
2019-07-19	arnaud	C-PRP	M4866973/277728947273/2770629068839231/14300023341616159671919 : F93584BA79A2C69B PRP: Verified PRP without proof (not generated)
2019-07-17	Brett Walker	C-PRP	M4866973/277728947273/2770629068839231/14300023341616159671919 : F93584BA79A2C69B PRP: Verified PRP without proof (not generated)
2019-07-11	_p95holder_	F-ECM	Factor: 14300023341616159671919 / (ECM curve 1, B1=50000, B2=5000000)
2018-04-02	kracker	C-PRP	M4866973/277728947273/2770629068839231 : BE71927CC6182CC5 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4866973/2770629068839231/277728947273 : BE71927CC6182CC5 PRP: Verified PRP without proof (not generated)
2014-06-21	TJAOI	F	Factor: 2770629068839231