127 385 173 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 =	1151000
B2 =	2174622450

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-08-08	Luke Durant	929A6A5800E72BF7	0	1	3

History

Date	User	Type	Result
2024-08-14	tbusby	NF	no factor from 2^68 to 2^69
2024-08-08	J_Hornby	CERT	PRP Certification CERT proof power = 8 Proof certified good
2024-08-08	Luke Durant	C-PRP	929A6A5800E72BF7 PRP proof power = 8 PRP: Verified Proof certified good
2024-07-18	Luke Durant	NF-PM1	B1=1151000, B2=2174622450
2022-11-12	lobsterfordinner	NF	no factor from 2^76 to 2^77
2022-11-12	lobsterfordinner	NF	no factor from 2^75 to 2^76
2022-11-12	lobsterfordinner	NF	no factor from 2^74 to 2^75
2021-07-13	SRBase	NF	no factor from 2^73 to 2^74
2020-11-16	SRBase	NF	no factor from 2^72 to 2^73
2016-06-17	d3zorg	NF	no factor from 2^71 to 2^72
2016-05-07	workerthread	NF	no factor from 2^70 to 2^71
2016-05-05	Smok_bmv	NF	no factor from 2^69 to 2^70
2016-04-25	Derek	NF	no factor from 2^68 to 2^69
2015-08-26	el grocco	NF	no factor from 2^67 to 2^68
2015-01-29	rubikvn2100	NF	no factor from 2^66 to 2^67
2012-09-26	Richard	NF	no factor from 2^65 to 2^66
2010-11-05	sasaki3	NF	no factor from 2^64 to 2^65
2010-05-28	Luigi Morelli	NF	no factor from 2^63 to 2^64