499 327 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
74819995878103466393845347618317201	35	115.8	2012-07-02 11:28:36

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)		Mischa Kenn	7C62B7C7DA829FE6	0
Verified (Factored)		Peter Marksteiner	7C62B7C7DA829FE6	0
Verified (Factored)		Brian J. Beesley	7C62B7C7DA829FE6	230406
Verified (Factored)		Eivind Triel	7C62B7C7DA829FE6	470654

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-27	Oliver Kruse	27D5BCCF1C8DC388	1	0	1	3
Verified	2017-11-03	kkmrkkblmbrbk	27D5BCCF1C8DC388	1	436667	1	3
Unverified (Reliable)	2020-04-18	Oliver Kruse	C590225983D9DB__	1	30983	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	M499327/74819995878103466393845347618317201 : C590225983D9DB__ PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-11-03	kkmrkkblmbrbk	C-PRP	M499327/74819995878103466393845347618317201 : 27D5BCCF1C8DC388 PRP: Unverified (Reliable) PRP without proof (small exponent)
2017-09-27	Oliver Kruse	C-PRP	M499327/74819995878103466393845347618317201 : 27D5BCCF1C8DC388 PRP: Unverified (Reliable) PRP without proof (not generated)
2012-07-02	alpertron	F-ECM	Factor: 74819995878103466393845347618317201
2011-06-20	Sid & Andy	NF	no factor from 2^60 to 2^61
2010-12-23	Rob_Dee	NF-PM1	B1=1000000, B2=2000000, E=6
2010-12-22	Rob_Dee	NF-PM1	B1=500000, B2=1000000