11 005 853 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
185955693515132950183	21	67.3	2017-01-22 15:31:35

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2002-06-15	Sjaak Koster	70EEBB8878EDA5C1	1470399
Verified (Factored)	2003-07-13	Daniel Swanson	70EEBB8878EDA5C1	6475520

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-04-23	RichD0	8553F0911DF2FF70	1	5699762	5	3

History

Date	User	Type	Result
2021-04-24	Kristaps	CERT	PRP Certification Proof certified good
2021-04-23	RichD0	C-PRP	M11005853/185955693515132950183 : 8553F0911DF2FF70 PRP proof power = 8 PRP: Verified Proof certified good
2017-01-22	Conductor	F	Factor: 185955693515132950183 / TF: 67-68
2015-12-18	VictordeHollander	NF	no factor from 2^66 to 2^67
2014-05-12	NR	NF	no factor from 2^65 to 2^66
2013-11-30	lycorn	NF	no factor from 2^64 to 2^65