105 201 493 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 =	1500000
B2 =	45000000

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-03-08	curtisc	3B2FC75440D5D3D1	33209304	1	3

History

Date	User	Type	Result
2021-03-11	curtisc	CERT	PRP Certification CERT proof power = 8 Proof certified good
2021-03-08	curtisc	C-PRP	3B2FC75440D5D3D1 PRP proof power = 8 PRP: Verified Proof certified good
2020-09-24	LaurV	NF-PM1	B1=1500000, B2=45000000
2020-09-16	RichD0	NF	no factor from 2^76 to 2^77
2020-09-05	ktony	NF	no factor from 2^75 to 2^76
2020-03-15	LaurV	NF	no factor from 2^74 to 2^75
2020-03-08	Hans Loeblich	NF	no factor from 2^73 to 2^74
2020-03-03	el grocco	NF	no factor from 2^72 to 2^73
2014-12-31	shauge	NF	no factor from 2^71 to 2^72
2014-10-31	shauge	NF	no factor from 2^70 to 2^71
2014-10-31	shauge	NF	no factor from 2^69 to 2^70
2014-10-31	shauge	NF	no factor from 2^68 to 2^69
2014-10-25	webbert	NF	no factor from 2^67 to 2^68
2013-09-09	willmore	NF	no factor from 2^66 to 2^67
2012-05-10	OS1	NF	no factor from 2^65 to 2^66
2010-08-31	Torchwood Institute	NF	no factor from 2^64 to 2^65
2010-04-23	Richard	NF	no factor from 2^63 to 2^64