100 847 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁶⁸

TF target 2⁴⁴

TF below 2^117 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	10000000000
B2 =	864670020464250

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	1684 / 4588

Estimated T-Level: 36.8 ⓘ

Status	Date	User	Residue	Shift
Verified		Unknown	2CDB	0
Verified		Robert Clark	5F2D441622B2ACDB	0
Verified		Brian J. Beesley	5F2D441622B2ACDB	0
Verified		Eivind Triel	5F2D441622B2ACDB	94093
Verified	2016-06-01	MadPoo	5F2D441622B2ACDB	25850

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-04-18	-Anonymous-	factor ECM small		0.00 %	2024-04-18
2024-04-17	-Anonymous-	factor ECM small		0.00 %	2024-04-23
2024-04-16	-Anonymous-	factor ECM small		0.00 %	2024-04-23
2024-03-19	-Anonymous-	factor ECM small		0.00 %	2024-03-19
2024-02-20	-Anonymous-	factor ECM small		0.00 %	2024-02-24

History

Date	User	Type	Result
2023-08-31	masser	NF-PP1	Start=6/5, B1=60000000, B2=10740000000
2023-08-28	masser	NF-PP1	Start=109/59, B1=60000000, B2=10740000000
2022-11-28	Oliver Kruse	NF-PM1	B1=10000000000, B2=864670020464250
2022-04-13	Gordon Spence	NF	no factor from 2^67 to 2^68
2021-04-28	Oliver Kruse	NF-PP1	Start=2/7, B1=50000000, B2=7050000000
2020-05-16	GdS	NF-PM1	B1=1642635517, B2=85417046906, E=12
2020-01-22	Gordon Spence	NF	no factor from 2^66 to 2^67
2019-02-09	BloodERazor	NF	no factor from 2^65 to 2^66
2017-10-23	BloodERazor	NF	no factor from 2^64 to 2^65
2016-11-25	mikr	NF-PM1	B1=350000000, B2=25500000000, E=12
2016-06-01	MadPoo	C-LL	5F2D441622B2ACDB
2016-02-23	Mark Rose	NF	no factor from 2^57 to 2^58
2016-02-17	Gordon Spence	NF	no factor from 2^63 to 2^64
2016-02-04	monsted	NF	no factor from 2^62 to 2^63
2015-07-11	NR	NF	no factor from 2^61 to 2^62
2013-10-09	lycorn	NF	no factor from 2^60 to 2^61
2012-11-19	alpertron	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-01-24	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