100 972 687 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 2⁷⁶

P-1

B1 =	785000
B2 =	15307500

Status	Date	User	Residue	Shift	Type	Base
Verified	2020-09-28	Ben Delo	0577B34B61EEEB4A	73252251	1	3

History

Date	User	Type	Result
2020-09-28	GAN	CERT	PRP Certification CERT proof power = 8 Proof certified good
2020-09-28	Ben Delo	C-PRP	0577B34B61EEEB4A PRP proof power = 8 PRP: Verified Proof certified good
2020-03-09	linament	NF-PM1	B1=785000, B2=15307500, E=12
2020-02-09	TheJudger	NF	no factor from 2^76 to 2^77
2020-01-29	TheJudger	NF	no factor from 2^75 to 2^76
2020-01-24	LaurV	NF	no factor from 2^74 to 2^75
2020-01-12	srow7	NF	no factor from 2^73 to 2^74
2019-11-22	Daniil Tsarkov	NF	no factor from 2^72 to 2^73
2014-12-04	SamPak	NF	no factor from 2^71 to 2^72
2013-08-27	PascalBieri	NF	no factor from 2^70 to 2^71
2013-08-26	PascalBieri	NF	no factor from 2^69 to 2^70
2013-08-25	Robish	NF	no factor from 2^68 to 2^69
2013-08-24	Le Comte	NF	no factor from 2^67 to 2^68
2011-04-03	Craig Meyers	NF	no factor from 2^66 to 2^67
2011-02-19	Craig Meyers	NF	no factor from 2^65 to 2^66
2010-08-12	Richard	NF	no factor from 2^64 to 2^65
2010-02-20	1997rj7	NF	no factor from 2^63 to 2^64