11 807 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 2 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
229966917708044743	18	57.7	old
1968448578407976788380008609041089672611863	43	140.5	2020-09-30 21:02:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	6262 / 16550

Estimated T-Level: 46.9 ⓘ

TF below 2^151 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	EB1722AFA931EEFF	1	0	1	3
Verified (Factored)	2017-10-12	kkmrkkblmbrbk	EB1722AFA931EEFF	1	11049	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	3167E88EC8581B57	1	2610	5	3
Verified	2020-10-01	mnd9	3167E88EC8581B57	2	6310	5	3
Verified	2020-10-03	arnaud	3167E88EC8581B57	2	10381	5	3

P-1 factors

Date	Factor	B1	B2
2023-03-26	229966917708044743	100000000000	122192573512709696

History

Date	User	Type	Result
2023-03-26	Anton Repko	F-PM1	Factor: 229966917708044743 / (P-1, B1=100000000000, B2=122192573512709700)
2020-10-03	arnaud	C-PRP	M11807/229966917708044743/1968448578407976788380008609041089672611863 : 3167E88EC8581B57 PRP: Verified PRP without proof (small exponent)
2020-10-01	mnd9	C-PRP	M11807/229966917708044743/1968448578407976788380008609041089672611863 : 3167E88EC8581B57 PRP: Verified PRP without proof (small exponent)
2020-09-30	James Hintz	F-ECM	Factor: 1968448578407976788380008609041089672611863 / (ECM curve 762, B1=3000000, B2=300000000, Sigma=5697946246725453)
2020-04-17	Oliver Kruse	C-PRP	M11807/229966917708044743 : 3167E88EC8581B57 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M11807/229966917708044743 : EB1722AFA931EEFF PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11807/229966917708044743 : EB1722AFA931EEFF PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M11807/229966917708044743 : EB1722AFA931EEFF PRP without proof (not generated)
2016-09-07	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12