1 535 563 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
5917023596740901520817	22	72.3	2019-06-14 11:51:38
52069713680423769203009	23	75.5	2013-09-02 08:27:41
30818203013521517235039257	26	84.7	2019-06-14 11:51:39

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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)		Les	951D2EBF79629166	0
Verified (Factored)	1998-11-07	Paul Victor Novarese	951D2EBF79629166	758120

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-01	Oliver Kruse	485A49069633A8E2	1	0	1	3
Verified (Factored)	2017-10-30	kkmrkkblmbrbk	485A49069633A8E2	1	568004	1	3
Verified	2019-06-14	ATH	EF368F7C2D614AE7	3	751925	5	3
Verified	2019-06-15	marssystems	EF368F7C2D614AE7	3	1402180	5	3

History

Date	User	Type	Result
2019-06-15	marssystems	C-PRP	M1535563/52069713680423769203009/5917023596740901520817/30818203013521517235039257 : EF368F7C2D614AE7 PRP: Verified PRP without proof (not generated)
2019-06-14	ATH	C-PRP	M1535563/52069713680423769203009/5917023596740901520817/30818203013521517235039257 : EF368F7C2D614AE7 PRP: Verified PRP without proof (not generated)
2019-06-14	TJAOI	F-ECM	Factor: 30818203013521517235039257 / (ECM curve 126, B1=50000, B2=5000000)
2019-06-14	TJAOI	F-ECM	Factor: 5917023596740901520817 / (ECM curve 14, B1=50000, B2=5000000)
2017-10-30	kkmrkkblmbrbk	C-PRP	M1535563/52069713680423769203009 : 485A49069633A8E2 PRP: Verified PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1535563/52069713680423769203009 : 485A49069633A8E2 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2013-09-02	Chang Chia-Tche	F-ECM	Factor: 52069713680423769203009
2011-02-01	James Heinrich	NF-PM1	B1=80000, B2=1340000, E=6
2010-05-04	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-25	Architects Cubed	NF	no factor from 2^60 to 2^61