101 041 579 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 2⁷⁶

TF target 2⁷⁶

P-1

B1 =	845000
B2 =	17533750

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-11-12	Ben Delo	68AB6E8B82E36C3B	777687	1	3

History

Date	User	Type	Result
2020-11-12	David Hruska	CERT	PRP Certification CERT proof power = 8 Proof certified good
2020-11-12	Ben Delo	C-PRP	68AB6E8B82E36C3B PRP proof power = 8 PRP: Verified Proof certified good
2020-11-11	Ben Delo	NF-PM1	B1=845000, B2=17533750, E=12
2020-03-08	Kriesel	NF	no factor from 2^75 to 2^76
2020-03-08	Kriesel	NF	no factor from 2^74 to 2^75
2020-03-08	Kriesel	NF	no factor from 2^73 to 2^74
2020-03-08	Kriesel	NF	no factor from 2^72 to 2^73
2014-11-30	shauge	NF	no factor from 2^71 to 2^72
2014-08-03	SMoffat	NF	no factor from 2^70 to 2^71
2014-05-27	webbert	NF	no factor from 2^69 to 2^70
2013-12-17	ANONYMOUS	NF	no factor from 2^68 to 2^69
2013-12-13	ANONYMOUS	NF	no factor from 2^67 to 2^68
2013-10-29	arnaud	NF	no factor from 2^66 to 2^67
2012-03-27	c10ck3r	NF	no factor from 2^65 to 2^66
2010-08-12	Richard	NF	no factor from 2^64 to 2^65
2010-02-09	1997rj7	NF	no factor from 2^63 to 2^64