14 204 101 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 =	2000000
B2 =	442415820

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2002-05-25	Steve Spicer	75992E438F6D05F9	3425950
Verified	2006-03-28	Ars Technica Team Prime Rib	75992E438F6D05F9	8029566

History

Date	User	Type	Result
2022-04-02	Random GPUs	NF	no factor from 2^72 to 2^73
2022-03-08	James Heinrich	NF-PM1	B1=538000, B2=471596580
2022-02-25	Architects Cubed	NF-PM1	B1=2000000, B2=442415820
2021-10-15	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-09-04	SRBase	NF	no factor from 2^70 to 2^71
2021-08-08	SRBase	NF	no factor from 2^69 to 2^70
2018-02-11	ramgeis	NF	no factor from 2^68 to 2^69
2018-02-11	ramgeis	NF	no factor from 2^67 to 2^68
2015-08-28	Tha	NF	no factor from 2^66 to 2^67
2014-08-01	Nesowa	NF	no factor from 2^65 to 2^66