2 166 457 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
24504236075446412425193	23	74.4	2018-03-02 01:20:07

ECM

Digits	B1	Curves
25	50000	104 / 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
Verified (Factored)		Jeff Woods	75FD5DCB70BDA01F	0
Verified (Factored)	1999-02-21	Mikio Inoue	75FD5DCB70BDA01F	253804

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-03-02	_p95holder_	2F14C52592ACDC36	1	551174	5	3
Verified	2018-03-07	Oliver Kruse	2F14C52592ACDC36	1	1926247	5	3

History

Date	User	Type	Result
2018-03-07	Oliver Kruse	C-PRP	M2166457/24504236075446412425193 : 2F14C52592ACDC36 PRP: Verified PRP without proof (not generated)
2018-03-02	_p95holder_	C-PRP	M2166457/24504236075446412425193 : 2F14C52592ACDC36 PRP: Verified PRP without proof (not generated)
2018-03-02	bam	F-ECM	Factor: 24504236075446412425193 / (ECM curve 3, B1=50000, B2=5000000)
2018-01-09	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2017-09-05	Joss	NF-PM1	B1=448876, B2=4488760, E=6
2016-11-10	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-03-05	Joss	NF-PM1	B1=224438, B2=4039884, E=6
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-12-30	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-05	Joss	NF-PM1	B1=149626
2013-09-08	ramgeis	NF	no factor from 2^62 to 2^63
2011-01-21	markr	NF-PM1	B1=120000, B2=2370000, E=6
2011-01-15	Joss	NF-PM1	B1=50000
2010-12-30	Joss	NF-PM1	B1=30000
2010-11-03	Joss	NF-PM1	B1=20000
2009-01-08	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61