5 610 461 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 7 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
33662767	8	25.0	old
39766947569	11	35.2	2008-09-08 01:39:03
89576620327	11	36.4	2008-09-08 01:39:03
79662161495383	14	46.2	2008-09-30 21:45:05
187529378401951	15	47.4	2014-03-05 11:38:17
7021230942854281	16	52.6	2014-08-19 11:29:58
126951438723183551	18	56.8	2015-05-04 11:12:05

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-12-10	Oliver Kruse	D25E66F01FB037EF	7	4879863	5	3
Verified	2018-04-05	kkmrkkblmbrbk	D25E66F01FB037EF	7	3043374	5	3

History

Date	User	Type	Result
2022-06-22	LordJulius	NF	no factor from 2^65 to 2^66
2022-06-22	LordJulius	NF	no factor from 2^64 to 2^65
2022-06-22	LordJulius	NF	no factor from 2^63 to 2^64
2021-10-26	Seth_Tr	NF-PM1	B1=1000000000, B2=241000000000
2019-12-28	Seth_Tr	NF	no factor from 2^67 to 2^68
2019-08-27	alpertron	NF-PM1	B1=30000000, B2=1000000000, E=12
2019-06-18	Seth_Tr	NF	no factor from 2^66 to 2^67
2018-04-05	kkmrkkblmbrbk	C-PRP	M5610461/33662767/39766947569/89576620327/79662161495383/187529378401951/7021230942854281/126951438723183551 : D25E66F01FB037EF PRP: Verified PRP without proof (not generated)
2017-12-10	Oliver Kruse	C-PRP	M5610461/33662767/39766947569/89576620327/79662161495383/187529378401951/7021230942854281/126951438723183551 : D25E66F01FB037EF PRP: Verified PRP without proof (not generated)
2015-05-04	TJAOI	F	Factor: 126951438723183551 / TF: 56-57
2014-08-19	TJAOI	F	Factor: 7021230942854281
2014-03-05	TJAOI	F	Factor: 187529378401951
2008-09-30	markr	F	Factor: 79662161495383
2008-09-08	Will Edgington	F	Factor: 89576620327
2008-09-08	Will Edgington	F	Factor: 39766947569