1 190 069 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
421757183395237598782063	24	78.5	2018-06-08 13:19:21
1031665894408840036716449	25	79.8	2011-11-06 18:09:33

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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)		David Slowinski	14CA	0
Verified (Factored)		tom ehlert	FC31B5EB3820F4CA	0
Verified (Factored)	2002-07-27	S57483	FC31B5EB3820F4CA	452752

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-29	Oliver Kruse	73B7DC4F6DBAA7BC	1	0	1	3
Verified (Factored)	2017-10-17	Oliver Kruse	73B7DC4F6DBAA7BC	1	1187530	1	3
Verified (Factored)	2018-01-02	ATH	73B7DC4F6DBAA7BC	1	57945	1	3
Verified	2018-06-10	Daniil Tsarkov	203B7D6A623AEDBE	2	1156244	5	3
Verified	2018-06-11	Chang Chia-Tche	203B7D6A623AEDBE	2	12460	5	3

History

Date	User	Type	Result
2022-04-12	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-12	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-12	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-12	LordJulius	NF	no factor from 2^1 to 2^61
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2018-06-11	Chang Chia-Tche	C-PRP	M1190069/1031665894408840036716449/421757183395237598782063 : 203B7D6A623AEDBE PRP: Verified PRP without proof (not generated)
2018-06-10	Daniil Tsarkov	C-PRP	M1190069/421757183395237598782063/1031665894408840036716449 : 203B7D6A623AEDBE PRP: Verified PRP without proof (not generated)
2018-06-08	TJAOI	F-ECM	Factor: 421757183395237598782063 / (ECM curve 135, B1=50000, B2=5000000)
2018-01-02	ATH	C-PRP	M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC PRP: Verified PRP without proof (not generated)
2017-10-17	Oliver Kruse	C-PRP	M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1190069/1031665894408840036716449 : 73B7DC4F6DBAA7BC PRP: Verified PRP without proof (not generated)
2011-11-06	Andriy Makukha	F-ECM	Factor: 1031665894408840036716449
2009-02-18	Sturle Sunde	NF	no factor from 2^60 to 2^61