1 481 483 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
741619431876329621233	21	69.3	2014-08-27 18:24:27

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Weip Chen	737D6656E886FD8C	0
Verified (Factored)	1998-11-21	David Campeau	737D6656E886FD8C	374566

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-01	Oliver Kruse	BE0A1FB419741776	1	0	1	3
Verified	2017-11-05	kkmrkkblmbrbk	BE0A1FB419741776	1	281968	1	3

History

Date	User	Type	Result
2023-10-27	Anton Tsvetkov	NF-PM1	B1=5000000, B2=1006114200
2017-11-05	kkmrkkblmbrbk	C-PRP	M1481483/741619431876329621233 : BE0A1FB419741776 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1481483/741619431876329621233 : BE0A1FB419741776 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2014-08-27	Chang Chia-Tche	F-ECM	Factor: 741619431876329621233 / (ECM curve 1, B1=50000, B2=5000000)
2011-04-05	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-12-24	Rob_Dee	NF-PM1	B1=200000, B2=5000000, E=6
2010-12-23	Rob_Dee	NF-PM1	B1=200000, B2=4000000, E=6
2010-12-22	Rob_Dee	NF-PM1	B1=200000, B2=3000000, E=6
2010-12-21	Rob_Dee	NF-PM1	B1=200000, B2=2000000, E=6
2010-12-20	Rob_Dee	NF-PM1	B1=200000, B2=1000000, E=6
2010-12-19	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-12-18	Rob_Dee	NF-PM1	B1=100000, B2=200000
2010-05-06	Architects Cubed	NF	no factor from 2^60 to 2^61