143 278 637 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

No known factors, not tested for primality

TF

No factors below 2⁷⁸

TF target 2⁷⁷

P-1

B1 =	1271000
B2 =	1606367400

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2025-08-16	Khoor	PRP test	PRP	0.01 %	2025-08-17

History

Date	User	Type	Result
2024-10-20	Luke Durant	NF	no factor from 2^77 to 2^78
2024-10-14	Dmitry Bolshakov	NF	no factor from 2^76 to 2^77
2024-10-05	Luke Durant	NF-PM1	B1=1271000, B2=1606367400
2024-07-17	SRBase	NF	no factor from 2^75 to 2^76
2017-01-18	bam	NF	no factor from 2^74 to 2^75
2017-01-18	bam	NF	no factor from 2^73 to 2^74
2017-01-18	bam	NF	no factor from 2^72 to 2^73
2017-01-18	bam	NF	no factor from 2^71 to 2^72
2017-01-18	bam	NF	no factor from 2^70 to 2^71
2016-04-26	La Güira	NF	no factor from 2^69 to 2^70
2016-04-26	La Güira	NF	no factor from 2^68 to 2^69
2016-04-04	dbaugh	NF	no factor from 2^67 to 2^68
2015-03-05	Richard	NF	no factor from 2^66 to 2^67
2012-12-14	Mr-Plonk	NF	no factor from 2^65 to 2^66
2010-12-21	Richard	NF	no factor from 2^64 to 2^65
2010-06-17	OS1	NF	no factor from 2^63 to 2^64