10 519 463 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 =	2000980800

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-08-24	Stephan Grupp	7EBCE5FA9854C09E	3943338
Verified	2004-01-07	Rick Cummings	7EBCE5FA9854C09E	8655392

History

Date	User	Type	Result
2024-08-23	timc995	NF-PM1	B1=2000000, B2=2000980800
2022-01-30	Zhang Ruichong	NF-PM1	B1=561000, B2=257134020
2021-12-31	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-31	SRBase	NF	no factor from 2^71 to 2^72
2021-08-12	SRBase	NF	no factor from 2^70 to 2^71
2020-08-15	ViliamF	NF	no factor from 2^69 to 2^70
2017-11-16	ramgeis	NF	no factor from 2^68 to 2^69
2017-09-26	-Anonymous-	NF	no factor from 2^67 to 2^68
2015-11-14	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-06	Tha	NF	no factor from 2^65 to 2^66
2013-12-19	lycorn	NF	no factor from 2^64 to 2^65
2013-07-23	Nesowa	NF-PM1	B1=130000, B2=2600000, E=6