359 663 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
1191268844032775298128035241	28	89.9	2011-02-02 23:58:41

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 640

Estimated T-Level: 26.6 ⓘ

TF below 2^83 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	14F0	0
Verified (Factored)		Brian J. Beesley	5E553BD18AADD4F0	0
Verified (Factored)		Ken Kriesel	5E553BD18AADD4F0	0
Verified (Factored)		Eivind Triel	5E553BD18AADD4F0	157259

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-23	Oliver Kruse	DF63A7DD71FDA78A	1	0	1	3
Verified	2017-11-02	kkmrkkblmbrbk	DF63A7DD71FDA78A	1	273006	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	DF177DFA9D547E__	1	282925	5	3

History

Date	User	Type	Result
2023-12-05	USAFSS	NF-PM1	B1=1530000, B2=5367308100
2020-04-18	Oliver Kruse	C-PRP	M359663/1191268844032775298128035241 : DF177DFA9D547E__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-02	kkmrkkblmbrbk	C-PRP	M359663/1191268844032775298128035241 : DF63A7DD71FDA78A PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-23	Oliver Kruse	C-PRP	M359663/1191268844032775298128035241 : DF63A7DD71FDA78A PRP: Unverified (Reliable) PRP without proof (not generated)
2011-02-02	Sid & Andy	F-ECM	Factor: 1191268844032775298128035241
2009-01-24	Sturle Sunde	NF	no factor from 2^59 to 2^60
2008-12-29	Sturle Sunde	NF	no factor from 2^58 to 2^59