80 852 773 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 2⁷⁵

P-1

B1 =	650000
B2 =	12675000

Status	Date	User	Residue	Shift	Type	Base
Verified	2018-07-23	Mihai Preda	BB722A84355DA392	0	1	3
Verified	2019-10-07	ky0uraku	BB722A84355DA392	32255898	1	3

History

Date	User	Type	Result
2019-10-07	ky0uraku	C-PRP	BB722A84355DA392 PRP: Verified PRP without proof (not generated)
2018-07-23	Mihai Preda	C-PRP	BB722A84355DA392 PRP: Verified PRP without proof (not generated)
2017-01-02	Judge Hale	NF-PM1	B1=650000, B2=12675000, E=12
2016-09-04	Judge Hale	NF-PM1	B1=650000, B2=12675000, E=12
2016-08-30	dh1	NF	no factor from 2^75 to 2^76
2016-08-30	dh1	NF	no factor from 2^74 to 2^75
2016-08-30	dh1	NF	no factor from 2^73 to 2^74
2016-08-30	dh1	NF	no factor from 2^72 to 2^73
2016-08-30	dh1	NF	no factor from 2^71 to 2^72
2013-06-13	g0b	NF	no factor from 2^70 to 2^71
2013-06-13	-Anonymous-	NF	no factor from 2^70 to 2^71
2013-02-03	Frank Roesel	NF	no factor from 2^69 to 2^70
2013-01-27	-Anonymous-	NF	no factor from 2^68 to 2^69
2013-01-26	-Anonymous-	NF	no factor from 2^67 to 2^68
2013-01-25	rjbelans	NF	no factor from 2^66 to 2^67
2011-08-08	Carsten Kossendey	NF	no factor from 2^65 to 2^66
2010-12-11	Architects Cubed	NF	no factor from 2^64 to 2^65