486 391 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
4392112743147522527031251205613537	34	111.8	2014-06-07 04:44:41

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	200 / 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	236	0
Verified (Factored)		Brian J. Beesley	D84F81EDE703C236	0
Verified (Factored)		Charles F. Kerchner III	D84F81EDE703C236	0
Verified (Factored)		Eivind Triel	D84F81EDE703C236	162208

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-26	Oliver Kruse	ED4BC22857909B6F	1	0	1	3
Verified	2017-09-27	Oliver Kruse	ED4BC22857909B6F	1	0	1	3
Verified	2017-11-09	kkmrkkblmbrbk	ED4BC22857909B6F	1	217070	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	738E0BC525A129__	1	422116	5	3

History

Date	User	Type	Result
2022-03-07	LordJulius	NF	no factor from 2^58 to 2^60
2022-03-07	LordJulius	NF	no factor from 2^54 to 2^55
2020-04-18	Oliver Kruse	C-PRP	M486391/4392112743147522527031251205613537 : 738E0BC525A129__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-09	kkmrkkblmbrbk	C-PRP	M486391/4392112743147522527031251205613537 : ED4BC22857909B6F PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M486391/4392112743147522527031251205613537 : ED4BC22857909B6F PRP: Unverified (Reliable) PRP without proof (not generated)
2017-09-26	Oliver Kruse	C-PRP	M486391/4392112743147522527031251205613537 : ED4BC22857909B6F PRP: Unverified (Reliable) PRP without proof (not generated)
2014-06-07	swildner	F-ECM	Factor: 4392112743147522527031251205613537
2012-10-11	markr	NF-PM1	B1=20000000, B2=1000000000, E=12
2011-12-23	Sid & Andy	NF	no factor from 2^60 to 2^61
2010-11-26	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-11-25	Rob_Dee	NF-PM1	B1=500000, B2=1000000