4 766 387 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
45711049378036519	17	55.3	old
1135409145247119713	19	60.0	2015-12-29 14:48:15
39474368934699566551	20	65.1	2018-05-31 14:34:44

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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	8A8434CFF707BAB7	2	0	1	3
Verified (Factored)	2018-03-25	Luigi Morelli	8A8434CFF707BAB7	2	1790127	1	3
Verified	2018-06-04	_p95holder_	65CC76482A0553A7	3	2897517	5	3
Verified	2018-06-05	kkmrkkblmbrbk	65CC76482A0553A7	3	3279407	5	3

History

Date	User	Type	Result
2023-10-09	USAFSS	NF-PM1	B1=240000, B2=91991760
2022-04-23	J.R. Allen	NF	no factor from 2^64 to 2^65
2022-04-23	J.R. Allen	NF	no factor from 2^63 to 2^64
2022-04-23	J.R. Allen	NF	no factor from 2^60 to 2^63
2018-06-05	kkmrkkblmbrbk	C-PRP	M4766387/45711049378036519/1135409145247119713/39474368934699566551 : 65CC76482A0553A7 PRP: Verified PRP without proof (not generated)
2018-06-04	_p95holder_	C-PRP	M4766387/45711049378036519/1135409145247119713/39474368934699566551 : 65CC76482A0553A7 PRP: Verified PRP without proof (not generated)
2018-05-31	TJAOI	F	Factor: 39474368934699566551 / TF: 65-66
2018-03-25	Luigi Morelli	C-PRP	M4766387/45711049378036519/1135409145247119713 : 8A8434CFF707BAB7 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4766387/1135409145247119713/45711049378036519 : 8A8434CFF707BAB7 PRP: Verified PRP without proof (not generated)
2015-12-29	TJAOI	F	Factor: 1135409145247119713 / TF: 59-60