102 228 899 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 =	740000
B2 =	21675000

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-01-19	Ben Delo	5BACEB780BA38CC0	88453966	1	3

History

Date	User	Type	Result
2021-01-19	Marcus Carpenter	CERT	PRP Certification CERT proof power = 8 Proof certified good
2021-01-19	Ben Delo	C-PRP	5BACEB780BA38CC0 PRP proof power = 8 PRP: Verified Proof certified good
2021-01-17	-Anonymous-	NF-PM1	B1=740000, B2=21675000, E=4
2020-10-29	Mark Rose	NF	no factor from 2^75 to 2^76
2020-10-21	RichD0	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	SRBase	NF	no factor from 2^72 to 2^73
2014-12-21	ITS	NF	no factor from 2^71 to 2^72
2014-07-18	-Anonymous-	NF	no factor from 2^70 to 2^71
2013-10-16	Mike Israel	NF	no factor from 2^69 to 2^70
2013-10-12	Cow_tipping	NF	no factor from 2^68 to 2^69
2013-09-29	SMoffat	NF	no factor from 2^67 to 2^68
2013-09-07	processinfo	NF	no factor from 2^66 to 2^67
2012-04-21	Torchwood Institute	NF	no factor from 2^65 to 2^66
2010-08-17	sasaki3	NF	no factor from 2^64 to 2^65
2010-05-17	1997rj7	NF	no factor from 2^63 to 2^64