56 829 809 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷⁶

TF target 2⁷³

P-1

B1 =	1000000
B2 =	20000000

Status	Date	User	Residue	Shift
Verified	2012-06-28	Choi4KANG	086E2A20740A81F4	40674185
Verified	2020-08-26	Andrew_and	086E2A20740A81F4	43968506

History

Date	User	Type	Result
2020-11-06	-Anonymous-	NF	no factor from 2^75 to 2^76
2020-10-18	-Anonymous-	NF	no factor from 2^74 to 2^75
2020-08-26	Andrew_and	C-LL	086E2A20740A81F4
2018-11-22	Chuck	NF	no factor from 2^73 to 2^74
2018-03-01	Sid & Andy	NF-PM1	B1=1000000, B2=20000000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^63
2016-01-22	-Anonymous-	NF	no factor from 2^72 to 2^73
2012-06-28	Choi4KANG	C-LL	086E2A20740A81F4
2012-05-20	Choi4KANG	NF-PM1	B1=695000
2012-05-12	Kyle Askine	NF	no factor from 2^71 to 2^72
2012-03-09	Kyle Askine	NF	no factor from 2^70 to 2^71
2011-06-07	Tom Duell	NF	no factor from 2^69 to 2^70
2011-05-03	-Anonymous-	NF	no factor from 2^68 to 2^69
2010-01-11	Pi_Rho	NF	no factor from 2^67 to 2^68
2008-08-18	James Heinrich	NF	no factor from 2^66 to 2^67
2008-08-17	James Heinrich	NF	no factor from 2^65 to 2^66
2008-08-16	Sturle Sunde	NF	no factor from 2^64 to 2^65
2008-08-15	Sturle Sunde	NF	no factor from 2^63 to 2^64