382 103 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
1157752504188757586864166079	28	89.9	2019-04-11 11:45:28

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	506 / 640

Estimated T-Level: 29.0 ⓘ

TF below 2^91 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Paul F. Bird	992ACC8ADD03301D	0
Verified (Factored)		Simon Burge	992ACC8ADD03301D	0
Verified (Factored)		Eivind Triel	992ACC8ADD03301D	180052
Verified (Factored)	2002-12-25	Brian J. Beesley	992ACC8ADD03301D	8887

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-12	artorollo	8E202EC6468092DD	1	375338	5	3
Verified	2019-04-12	matzetoni	8E202EC6468092DD	1	285675	5	3
Verified	2019-04-13	kkmrkkblmbrbk	8E202EC6468092DD	1	352098	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2019-04-13	kkmrkkblmbrbk	C-PRP	M382103/1157752504188757586864166079 : 8E202EC6468092DD PRP: Verified PRP without proof (small exponent)
2019-04-12	matzetoni	C-PRP	M382103/1157752504188757586864166079 : 8E202EC6468092DD PRP: Verified PRP without proof (small exponent)
2019-04-12	artorollo	C-PRP	M382103/1157752504188757586864166079 : 8E202EC6468092DD PRP: Verified PRP without proof (small exponent)
2019-04-11	alex	F-ECM	Factor: 1157752504188757586864166079 / (ECM curve 256, B1=250000, B2=25000000, Sigma=1492777535721702)
2018-02-04	BloodERazor	NF	no factor from 2^64 to 2^65
2017-01-03	mikr	NF-PM1	B1=60000000, B2=3000000000, E=12
2015-11-22	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-22	Gordon Spence	NF	no factor from 2^62 to 2^63
2012-12-01	dbaugh	NF	no factor from 2^61 to 2^62
2012-11-27	dbaugh	NF	no factor from 2^60 to 2^61
2012-07-25	alpertron	NF-PM1	B1=10000000, B2=200000000, E=12
2009-01-09	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-05	Sturle Sunde	NF	no factor from 2^58 to 2^59