14 653 867 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 2⁶⁹

P-1

B1 =	1500000
B2 =	1253594160

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2003-04-03	Steve McDermott	E310F43FD9253E38	9173833
Verified	2006-01-15	Eric Bravick	E310F43FD9253E38	13021730

History

Date	User	Type	Result
2024-06-29	Sid & Andy	NF-PM1	B1=1500000, B2=1253594160
2021-12-03	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-08-26	Seth_Tr	NF	no factor from 2^71 to 2^72
2021-07-20	Seth_Tr	NF	no factor from 2^70 to 2^71
2021-07-20	Seth_Tr	NF	no factor from 2^69 to 2^70
2018-03-14	ramgeis	NF	no factor from 2^68 to 2^69
2018-03-14	ramgeis	NF	no factor from 2^67 to 2^68
2016-07-24	Tha	NF-PM1	B1=300000, B2=6000000, E=6
2016-03-16	Mark Rose	NF	no factor from 2^65 to 2^66
2015-09-30	Nesowa	NF	no factor from 2^66 to 2^67