14 923 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
11102713	8	23.4	old
396004517807	12	38.5	2008-08-26 19:58:44

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1258 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	9CDE3A61B011AB85	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	9CDE3A61B011AB85	2	9393	1	3
Unverified	2020-04-17	Oliver Kruse	A1D02605121C98__	2	14477	5	3

History

Date	User	Type	Result
2024-03-07	-Anonymous-	NF-PM1	B1=100000000000, B2=122154521813133810
2023-05-27	JacobZ	NF-PM1	B1=7300000000, B2=30020805351537000
2021-12-02	Lisander Viaene	NF-PM1	B1=100000000, B2=114249978542700
2020-04-17	Oliver Kruse	C-PRP	M14923/11102713/396004517807 : A1D02605121C98__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M14923/11102713/396004517807 : 9CDE3A61B011AB85 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M14923/11102713/396004517807 : 9CDE3A61B011AB85 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M14923/11102713/396004517807 : 9CDE3A61B011AB85 PRP without proof (not generated)
2008-08-26	-Anonymous-	F	Factor: 396004517807