2 534 443 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶³

Factored

Factor	Digits	Bits	Date
7489508170623153463	19	62.7	2010-04-30 16:28:55

ECM

Digits	B1	Curves
25	50000	180 / 280

Estimated T-Level: 23.2 ⓘ

TF below 2^72 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift	Software
Factored		Scott Kurowski	2B6C7322E6A16FB3	0	Windows,Prime95,v14,(aka WQ1)
Factored	1999-03-26	Kasper Vibe Grevsen	2B6C7322E6A16FB3	675309	Windows,Prime95,v17,(aka WT1)

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-14	Oliver Kruse	971933DD9C950CBE	1	861428	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	971933DD9C950CBE	1	1877091	5	3

History

Date	User	Type	Result
2022-03-11	LordJulius	NF	no factor TF: 1-60
2021-09-30	Dylan Delgado	NF-PM1	B1=3000000, B2=273000000
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-01	storm5510	C-PRP	M2534443/7489508170623153463 : 971933DD9C950CBE
2017-10-14	Oliver Kruse	C-PRP	M2534443/7489508170623153463 : 971933DD9C950CBE
2010-04-30	James Hintz	F-ECM	Factor: 7489508170623153463
2009-01-31	Sturle Sunde	NF	no factor TF: 60-61
2003-11-08	Team Prime Rib	NF-PM1	B1=15000, B2=198750
2003-10-23	-anonymous-	NF-PM1	B1=2048, B2=204800
1999-03-26	-anonymous-	C-LL	2B6C7322E6A16FB3
1999-03-15	-anonymous-	NF	no factor TF: 1-59