1 935 181 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
15533353424783	14	43.8	old
1234771308458797707823	22	70.1	2020-11-15 23:59:11
1346986565304082850588159	25	80.2	2022-03-17 11:24:21

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)	2017-10-05	Oliver Kruse	D5D69E0030E64780	1	0	1	3
Verified (Factored)	2017-11-10	ATH	D5D69E0030E64780	1	1380181	1	3
Verified (Factored)	2020-11-17	Poao	7E84D1214D52D8C4	2	1593436	5	3
Verified	2022-03-20	SRJ2877	7E84D1214D52D8C4	3	1711760	5	3

History

Date	User	Type	Result
2022-03-20	Chad Steenerson	CERT	PRP Certification Proof certified good
2022-03-20	SRJ2877	C-PRP	M1935181/15533353424783/1234771308458797707823/1346986565304082850588159 : 7E84D1214D52D8C4 PRP proof power = 7 PRP: Verified Proof certified good
2022-03-17	TJAOI	F-ECM	Factor: 1346986565304082850588159 / (ECM curve 105, B1=50000, B2=7500000)
2020-11-17	Franklin Webber	CERT	PRP Certification Proof certified good
2020-11-17	Poao	C-PRP	M1935181/15533353424783/1234771308458797707823 : 7E84D1214D52D8C4 PRP proof power = 7 PRP: Verified (Factored) Proof certified good
2020-11-15	MarkS	F-ECM	Factor: 1234771308458797707823 / (ECM curve 5, B1=50000, B2=5000000, Sigma=665228111457964)
2017-11-10	ATH	C-PRP	M1935181/15533353424783 : D5D69E0030E64780 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-05	Oliver Kruse	C-PRP	M1935181/15533353424783 : D5D69E0030E64780 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12