1 246 501 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
11809602372322167394096601	26	83.3	2016-05-16 18:59:27

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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)		Joel Armengaud	A5A7140754E00310	0
Verified (Factored)		Cornelius Caesar	A5A7140754E00310	0
Verified (Factored)		Ricardo Montiel	A5A7140754E00310	0
Verified (Factored)	2015-11-12	MadPoo	A5A7140754E00310	288631

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	3C8A31D163839522	1	0	1	3
Verified	2017-10-20	kkmrkkblmbrbk	3C8A31D163839522	1	430598	1	3

History

Date	User	Type	Result
2017-10-20	kkmrkkblmbrbk	C-PRP	M1246501/11809602372322167394096601 : 3C8A31D163839522 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1246501/11809602372322167394096601 : 3C8A31D163839522 PRP: Verified PRP without proof (not generated)
2016-05-16	f0rteOC	F-ECM	Factor: 11809602372322167394096601
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-12	MadPoo	C-LL	A5A7140754E00310
2015-09-20	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-06	monst	NF	no factor from 2^64 to 2^65
2015-04-04	omylist	NF	no factor from 2^63 to 2^64
2015-01-13	mikr	NF-PM1	B1=4218475, B2=156083565, E=12
2014-09-25	Joss	NF-PM1	B1=251491
2012-10-07	dbaugh	NF	no factor from 2^62 to 2^63
2012-09-14	Axelsson	NF	no factor from 2^61 to 2^62
2009-02-15	Sturle Sunde	NF	no factor from 2^60 to 2^61