104 181 527 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 =	766000
B2 =	21574000

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-06-14	Shaffer	F0D99FA3A3679FFD	35559618	1	3

History

Date	User	Type	Result
2021-06-15	ky0uraku	CERT	PRP Certification CERT proof power = 8 Proof certified good
2021-06-14	Shaffer	C-PRP	F0D99FA3A3679FFD PRP proof power = 8 PRP: Verified Proof certified good
2021-06-07	BigBrother	NF-PM1	B1=766000, B2=21574000
2021-02-03	1997rj7	NF	no factor from 2^75 to 2^76
2021-01-27	linament	NF	no factor from 2^74 to 2^75
2020-03-31	SRBase	NF	no factor from 2^73 to 2^74
2020-03-29	masser	NF	no factor from 2^72 to 2^73
2015-01-18	workerthread	NF	no factor from 2^71 to 2^72
2014-10-17	shauge	NF	no factor from 2^70 to 2^71
2014-10-17	shauge	NF	no factor from 2^69 to 2^70
2014-10-16	-Anonymous-	NF	no factor from 2^68 to 2^69
2014-07-17	Preben S	NF	no factor from 2^67 to 2^68
2014-05-10	Greg Hogan	NF	no factor from 2^66 to 2^67
2012-05-04	sannerud.com	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