454 109 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
247984129055437022215193	24	77.7	2014-03-25 10:06:20

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	210 / 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	181D	0
Verified (Factored)		Robert Clark	09F266CC5B3A981D	0
Verified (Factored)		Eivind Triel	09F266CC5B3A981D	424288
Verified (Factored)	2002-03-03	Binary Digits	09F266CC5B3A981D	166246

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-25	Oliver Kruse	81ED37FB50E8BE25	1	0	1	3
Verified	2017-09-27	Oliver Kruse	81ED37FB50E8BE25	1	0	1	3
Verified	2017-11-09	kkmrkkblmbrbk	81ED37FB50E8BE25	1	420780	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	27C3B29242390B__	1	25525	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2020-04-18	Oliver Kruse	C-PRP	M454109/247984129055437022215193 : 27C3B29242390B__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-09	kkmrkkblmbrbk	C-PRP	M454109/247984129055437022215193 : 81ED37FB50E8BE25 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M454109/247984129055437022215193 : 81ED37FB50E8BE25 PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-25	Oliver Kruse	C-PRP	M454109/247984129055437022215193 : 81ED37FB50E8BE25 PRP: Unverified (Reliable) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=3000000, B2=100000000, E=12
2014-03-25	bam	F-ECM	Factor: 247984129055437022215193
2012-09-04	markr	NF-PM1	B1=10000000, B2=400000000, E=12
2011-04-11	Sid & Andy	NF	no factor from 2^60 to 2^61
2010-09-27	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-09-26	Rob_Dee	NF-PM1	B1=500000, B2=1000000
2009-08-28	Carsten Kossendey	NF-PM1	B1=454109