83 023 643 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	660000
B2 =	12870000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-01-05	Stefan G Hoffmann	BE98C144722D94A5	63907621	1	3
Verified	PRP without proof (not generated)	2021-11-20	Kriesel	BE98C144722D94A5	10269927	1	3

History

Date	User	Type	Result
2021-11-20	Kriesel	C-PRP	BE98C144722D94A5
2019-01-05	Stefan G Hoffmann	C-PRP	BE98C144722D94A5
2017-03-03	Judge Hale	NF-PM1	B1=660000, B2=12870000, E=12
2017-01-30	HardyP Germany	NF	no factor TF: 75-76
2016-12-25	Mark Rose	NF	no factor TF: 74-75
2016-12-25	Mark Rose	NF	no factor TF: 73-74
2016-12-02	Judge Hale	NF	no factor TF: 72-73
2016-12-02	Judge Hale	NF	no factor TF: 71-72
2011-03-28	steinrar	NF	no factor TF: 70-71
2011-03-28	steinrar	NF	no factor TF: 69-70
2011-03-28	steinrar	NF	no factor TF: 68-69
2011-03-28	steinrar	NF	no factor TF: 67-68
2011-03-28	steinrar	NF	no factor TF: 65-67
2010-12-18	Architects Cubed	NF	no factor TF: 64-65