10 501 817 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	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-09-29	Stephen Scott	7CCE13087749147B	204764
Bad	2003-12-13	Peter Milic	877F074D746FDA62	2951290
Verified	2004-03-01	Geoff Wing	7CCE13087749147B	89821

History

Date	User	Type	Result
2024-03-30	Sid & Andy	NF-PM1	B1=2000000, B2=2567622750
2021-12-29	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-27	SRBase	NF	no factor from 2^71 to 2^72
2021-08-12	SRBase	NF	no factor from 2^70 to 2^71
2014-04-07	ramgeis	NF	no factor from 2^69 to 2^70
2014-04-07	ramgeis	NF	no factor from 2^68 to 2^69
2014-04-07	ramgeis	NF	no factor from 2^67 to 2^68
2014-04-07	ramgeis	NF	no factor from 2^66 to 2^67
2013-05-13	Nesowa	NF-PM1	B1=240000, B2=5160000, E=6
2012-09-16	GrunwalderGIMP	NF	no factor from 2^65 to 2^66
2012-09-15	GrunwalderGIMP	NF	no factor from 2^64 to 2^65