1 846 121 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
236303489	9	27.8	old
828543336489632927	18	59.5	2015-04-24 12:16:21
97420396528543174111	20	66.4	2017-12-16 02:16:54

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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	287F80E31DA17326	2	0	1	3
Verified (Factored)	2017-11-06	kkmrkkblmbrbk	287F80E31DA17326	2	526533	1	3
Verified	2017-12-17	kkmrkkblmbrbk	D26E59EE7CA4DB7D	3	1247367	5	3
Verified	2017-12-17	ATH	D26E59EE7CA4DB7D	3	379956	5	3
Verified (Factored)	2017-12-20	nokno	56EAD49E4950DCE5	1	0	1	3

History

Date	User	Type	Result
2022-04-11	Lisander Viaene	NF-PM1	B1=500000, B2=2835864570
2017-12-20	nokno	C-PRP	M1846121/known_factors : 56EAD49E4950DCE5 PRP: Verified (Factored) PRP without proof (not generated)
2017-12-17	ATH	C-PRP	M1846121/236303489/828543336489632927/97420396528543174111 : D26E59EE7CA4DB7D PRP: Verified (Factored) PRP without proof (not generated)
2017-12-17	kkmrkkblmbrbk	C-PRP	M1846121/236303489/828543336489632927/97420396528543174111 : D26E59EE7CA4DB7D PRP: Verified (Factored) PRP without proof (not generated)
2017-12-16	ATH	F-ECM	Factor: 97420396528543174111 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-06	kkmrkkblmbrbk	C-PRP	M1846121/236303489/828543336489632927 : 287F80E31DA17326 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1846121/236303489/828543336489632927 : 287F80E31DA17326 PRP: Verified (Factored) PRP without proof (not generated)
2015-04-24	ANONYMOUS	F	Factor: 828543336489632927 / TF: 1-61