1 758 989 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
33368323264211917895871009007	29	94.8	2015-04-29 10:48:01

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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)		Ken Kriesel	5208E23510EE3E06	0
Verified (Factored)	1999-04-13	Andy Kohler	5208E23510EE3E06	593298

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-03	Oliver Kruse	C4D0F93FFBE18679	1	0	1	3
Verified	2017-11-04	kkmrkkblmbrbk	C4D0F93FFBE18679	1	1228636	1	3

P-1 factors

Date	Factor	B1	B2
2015-04-29	33368323264211917895871009007	2475400	86660000

History

Date	User	Type	Result
2017-11-04	kkmrkkblmbrbk	C-PRP	M1758989/33368323264211917895871009007 : C4D0F93FFBE18679 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1758989/33368323264211917895871009007 : C4D0F93FFBE18679 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-04-29	mikr	F-PM1	Factor: 33368323264211917895871009007 / (P-1, B1=2475400, B2=86660000, E=12)
2015-04-28	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-28	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-17	-Anonymous-	NF-PM1	B1=172978
2014-05-09	Joss	NF-PM1	B1=136489
2014-04-08	Joss	NF-PM1	B1=100000
2011-02-07	Carsten Kossendey	NF-PM1	B1=95000, B2=1567500, E=6
2010-12-13	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-24	Architects Cubed	NF	no factor from 2^60 to 2^61