572 791 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
862442904756241894201	21	69.5	2008-01-15 06:16:28
13477073292228981804137	23	73.5	2015-09-11 20:14:43

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	Number of known factors	Shift	Type	Base
Verified	2017-09-28	Oliver Kruse	B5BD090365EAA37D	2	0	1	3
Verified	2017-09-30	alpertron	B5BD090365EAA37D	2	0	1	3
Verified	2017-12-07	ATH	B5BD090365EAA37D	2	256663	1	3
Unverified (Reliable)	2020-04-19	Oliver Kruse	7E8D323A728853__	2	539433	5	3

History

Date	User	Type	Result
2022-12-15	USAFSS	NF-PM1	B1=1750000, B2=5675249580
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-19	Oliver Kruse	C-PRP	M572791/862442904756241894201/13477073292228981804137 : 7E8D323A728853__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M572791/862442904756241894201/13477073292228981804137 : B5BD090365EAA37D PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-30	alpertron	C-PRP	M572791/13477073292228981804137/862442904756241894201 : B5BD090365EAA37D PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-28	Oliver Kruse	C-PRP	M572791/862442904756241894201/13477073292228981804137 : B5BD090365EAA37D PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-27	Oliver Kruse	C-PRP	M572791/862442904756241894201/13477073292228981804137 : B5BD090365EAA37D PRP without proof (not generated)
2015-09-11	TJAOI	F-ECM	Factor: 13477073292228981804137 / (ECM curve 57, B1=50000, B2=5000000)
2008-01-15	Team_Bundu	F-ECM	Factor: 862442904756241894201