2 477 051 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
1477750395990964063	19	60.4	2016-02-01 12:59:08
719001705595926312583	21	69.3	old

ECM

Digits	B1	Curves
25	50000	108 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Bad		Steven Madsen	6DE933B6E0F18E9F	0	Windows,Prime95,v14,NT service,(aka WQ5)
Factored	1999-06-15	Cornelis Zijlstra	25B8C1BB5CEC50B6	671055	Windows,Prime95,v17,(aka WT1)
Factored	2000-01-04	Patrice J. Baumann	25B8C1BB5CEC50B6	17559	Windows,Prime95,v18,(aka WU1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	EC6AE95A03F1ED23	2	1757381	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	EC6AE95A03F1ED23	2	1022731	5	3

History

Date	User	Type	Result
2022-03-10	LordJulius	NF	no factor TF: 1-60
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-29	storm5510	C-PRP	M2477051/719001705595926312583/1477750395990964063 : EC6AE95A03F1ED23
2017-10-14	Oliver Kruse	C-PRP	M2477051/719001705595926312583/1477750395990964063 : EC6AE95A03F1ED23
2016-02-01	TJAOI	F	Factor: 1477750395990964063
2003-10-31	Team Prime Rib	F-PM1	Factor: 719001705595926312583
2003-10-14	-anonymous-	F-PM1	Factor: 719001705595926312583
2000-01-04	-anonymous-	C-LL	25B8C1BB5CEC50B6
1999-06-15	-anonymous-	C-LL	25B8C1BB5CEC50B6
1999-05-02	-anonymous-	NF	no factor TF: 1-59