104 009 419 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 =	885000
B2 =	21682500

Status	Date	User	Residue	Shift	Type	Base
Verified	2021-05-17	Ben Delo	A3776577D6479F2C	9601329	1	3

History

Date	User	Type	Result
2021-05-17	Sirbudrick	CERT	PRP Certification CERT proof power = 8 Proof certified good
2021-05-17	Ben Delo	C-PRP	A3776577D6479F2C PRP proof power = 8 PRP: Verified Proof certified good
2021-01-14	penlu	NF-PM1	B1=885000, B2=21682500, e=6
2020-09-20	Bill Staffen	NF	no factor from 2^76 to 2^77
2020-03-26	Kriesel	NF	no factor from 2^75 to 2^76
2020-03-26	Kriesel	NF	no factor from 2^74 to 2^75
2020-03-26	Kriesel	NF	no factor from 2^73 to 2^74
2015-01-06	PED	NF	no factor from 2^72 to 2^73
2015-01-05	PED	NF	no factor from 2^71 to 2^72
2014-06-07	Satan	NF	no factor from 2^70 to 2^71
2014-05-13	ITS	NF	no factor from 2^69 to 2^70
2014-05-07	Andreas_Truetsch	NF	no factor from 2^68 to 2^69
2013-08-30	Taz-i7	NF	no factor from 2^67 to 2^68
2013-08-30	g0b	NF	no factor from 2^66 to 2^67
2012-05-03	Mr-Plonk	NF	no factor from 2^65 to 2^66
2010-08-25	sasaki3	NF	no factor from 2^64 to 2^65
2010-04-17	Torchwood Institute	NF	no factor from 2^63 to 2^64