10 773 731 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 Lucas-Lehmer test

TF

No factors below 2⁷³

TF target 2⁶⁸

P-1

B1 =	2200000
B2 =	1683437580

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-04-01	Steve Spicer	F62B947B8435333A	1343515
Verified	2004-01-18	Team Inspector	F62B947B8435333A	3037669

History

Date	User	Type	Result
2024-04-05	Sid & Andy	NF-PM1	B1=2200000, B2=1683437580
2022-03-05	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-11-09	SRBase	NF	no factor from 2^71 to 2^72
2021-08-12	SRBase	NF	no factor from 2^70 to 2^71
2020-12-03	ViliamF	NF-PM1	B1=1000000, B2=30000000
2020-09-04	ViliamF	NF	no factor from 2^69 to 2^70
2017-12-21	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-21	ramgeis	NF	no factor from 2^67 to 2^68
2015-12-02	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-18	Tha	NF	no factor from 2^65 to 2^66
2013-12-10	lycorn	NF	no factor from 2^64 to 2^65