104 147 663 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 =	870000
B2 =	18052500

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-05-27	Ben Delo	994C6558411FF4C1	49573305	1	3

History

Date	User	Type	Result
2021-05-28	curtisc	CERT	PRP Certification CERT proof power = 8 Proof certified good
2021-05-27	Ben Delo	C-PRP	994C6558411FF4C1 PRP proof power = 8 PRP: Verified Proof certified good
2021-05-26	Ben Delo	NF-PM1	B1=870000, B2=18052500, E=12
2021-01-30	1997rj7	NF	no factor from 2^75 to 2^76
2021-01-25	lobsterfordinner	NF	no factor from 2^74 to 2^75
2019-12-25	La Güira	NF	no factor from 2^73 to 2^74
2019-12-25	La Güira	NF	no factor from 2^72 to 2^73
2014-05-10	Phil	NF	no factor from 2^71 to 2^72
2014-05-10	Phil	NF	no factor from 2^70 to 2^71
2014-05-10	Phil	NF	no factor from 2^69 to 2^70
2014-05-10	Phil	NF	no factor from 2^68 to 2^69
2014-05-10	Phil	NF	no factor from 2^67 to 2^68
2013-08-31	Damian Silvestre	NF	no factor from 2^66 to 2^67
2012-07-02	sasaki3	NF	no factor from 2^65 to 2^66
2010-08-26	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-04-22	Richard	NF	no factor from 2^63 to 2^64