10 958 369 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 2⁷⁴

TF target 2⁶⁸

P-1

B1 =	2200000
B2 =	1625183340

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-12-31	Michael Angel	D64DC8D34F58E47A	3372872
Verified	2003-09-14	Daniel Swanson	D64DC8D34F58E47A	3464538

History

Date	User	Type	Result
2024-03-12	Sid & Andy	NF-PM1	B1=2200000, B2=1625183340
2022-02-06	-Anonymous-	NF	no factor from 2^73 to 2^74
2022-02-04	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-11-12	SRBase	NF	no factor from 2^71 to 2^72
2021-09-08	alpertron	NF-PM1	B1=1000000, B2=61000000
2021-08-13	SRBase	NF	no factor from 2^70 to 2^71
2020-09-20	ViliamF	NF	no factor from 2^69 to 2^70
2017-12-16	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-16	ramgeis	NF	no factor from 2^67 to 2^68
2015-11-10	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-21	Tha	NF	no factor from 2^65 to 2^66
2013-12-05	lycorn	NF	no factor from 2^64 to 2^65