10 597 291 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 =	2000000
B2 =	2567622750

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

Status	Date	User	Residue	Shift
Verified	2002-03-16	BigRat	4DDD56CF50F8A7A7	8493565
Verified	2003-12-02	Marc Getty / Phil Fizur	4DDD56CF50F8A7A7	5509696

History

Date	User	Type	Result
2024-04-11	Sid & Andy	NF-PM1	B1=2000000, B2=2567622750
2021-12-30	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-26	SRBase	NF	no factor from 2^71 to 2^72
2021-08-16	SRBase	NF	no factor from 2^70 to 2^71
2020-08-23	ViliamF	NF	no factor from 2^69 to 2^70
2017-11-30	ramgeis	NF	no factor from 2^68 to 2^69
2017-11-30	ramgeis	NF	no factor from 2^67 to 2^68
2015-11-18	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-08	Tha	NF	no factor from 2^65 to 2^66
2013-12-16	lycorn	NF	no factor from 2^64 to 2^65
2013-01-26	Nesowa	NF-PM1	B1=155000, B2=3000000, E=6