27 943 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
9595745432621621468883227471666940222487	40	132.8	2015-06-01 18:40:36

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	2030 / 4588

Estimated T-Level: 37.2 ⓘ

TF below 2^119 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	6FB6	0
Verified (Factored)		George Woltman	7295C65C71D9EFB6	0
Verified (Factored)		Brian J. Beesley	7295C65C71D9EFB6	0
Verified (Factored)	2015-04-11	MadPoo	7295C65C71D9EFB6	21137

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	0A89FD76C2105E73	1	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	0A89FD76C2105E73	1	0	1	3
Verified	2017-12-07	ATH	0A89FD76C2105E73	1	1789	1	3
Unverified	2020-04-17	Oliver Kruse	697C47D6BCF2C9__	1	14035	5	3

History

Date	User	Type	Result
2023-03-21	nordi	NF-PM1	B1=3000000000, B2=925584566816910
2022-12-30	nordi	NF-PM1	B1=3000000000
2022-05-07	LordJulius	NF	no factor from 2^57 to 2^58
2020-04-17	Oliver Kruse	C-PRP	M27943/9595745432621621468883227471666940222487 : 697C47D6BCF2C9__ PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M27943/9595745432621621468883227471666940222487 : 0A89FD76C2105E73 PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M27943/9595745432621621468883227471666940222487 : 0A89FD76C2105E73 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M27943/9595745432621621468883227471666940222487 : 0A89FD76C2105E73 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M27943/9595745432621621468883227471666940222487 : 0A89FD76C2105E73 PRP without proof (not generated)
2016-12-21	kkmrkkblmbrbk	NF-PM1	B1=500000000, B2=10000000000, E=12
2015-06-01	lycorn	F-ECM	Factor: 9595745432621621468883227471666940222487 / (ECM curve 228, B1=3000000, B2=300000000)
2015-04-11	MadPoo	C-LL	7295C65C71D9EFB6
2013-11-06	David Campeau	NF-PM1	B1=205305000, B2=10675860000, E=12
2012-04-02	bcp19	NF	no factor from 2^61 to 2^62
2012-04-02	bcp19	NF	no factor from 2^60 to 2^61
2009-01-31	Sturle Sunde	NF	no factor from 2^59 to 2^60
2009-01-12	Sturle Sunde	NF	no factor from 2^58 to 2^59