136 142 407 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	801000
B2 =	87627960

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-10-09	Luke Durant	DB585176A2B5CC55	0	1	3

History

Date	User	Type	Result
2024-10-10	BA24Cx	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-10-09	Luke Durant	C-PRP	DB585176A2B5CC55 PRP proof power = 9 PRP: Verified Proof certified good
2024-05-03	EthanD	NF-PM1	B1=801000, B2=87627960
2024-04-26	Jurzal	NF	no factor from 2^76 to 2^77
2024-04-26	Jurzal	NF	no factor from 2^75 to 2^76
2023-01-09	SRBase	NF	no factor from 2^74 to 2^75
2021-07-29	SRBase	NF	no factor from 2^73 to 2^74
2020-10-25	SRBase	NF	no factor from 2^72 to 2^73
2016-03-04	shbris	NF	no factor from 2^71 to 2^72
2016-03-02	dbaugh	NF	no factor from 2^70 to 2^71
2016-02-27	dbaugh	NF	no factor from 2^69 to 2^70
2016-02-17	dbaugh	NF	no factor from 2^68 to 2^69
2016-02-11	dbaugh	NF	no factor from 2^67 to 2^68
2015-01-29	vwflat4	NF	no factor from 2^66 to 2^67
2012-11-12	Andrew B	NF	no factor from 2^65 to 2^66
2010-11-27	M Rafi	NF	no factor from 2^64 to 2^65
2010-06-09	sannerud.com	NF	no factor from 2^63 to 2^64