10 309 709 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 =	2589775650

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-07-25	Yoo C. Chung	11DD02389FDE7807	6678206
Verified	2003-12-13	Ars Technica Team Prime Rib	11DD02389FDE7807	7328339

History

Date	User	Type	Result
2024-01-28	Sid & Andy	NF-PM1	B1=2000000, B2=2589775650
2021-06-05	Dylan Delgado	NF-PM1	B1=300000, B2=18732000
2021-04-17	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-04-16	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-04-16	-Anonymous-	NF	no factor from 2^70 to 2^71
2020-08-03	ViliamF	NF	no factor from 2^69 to 2^70
2017-11-26	ramgeis	NF	no factor from 2^68 to 2^69
2017-09-25	-Anonymous-	NF	no factor from 2^67 to 2^68
2015-12-11	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-04-28	Tha	NF	no factor from 2^65 to 2^66
2013-09-25	Nesowa	NF	no factor from 2^64 to 2^65
2013-06-04	Nesowa	NF-PM1	B1=125000, B2=2531250, E=6