16 883 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
33767	5	15.0	old
12054463	8	23.5	2008-08-26 19:58:49
123014863177782481	18	56.8	2008-08-26 19:58:49
322960136514206071730808578201	30	98.0	2011-04-05 23:41:06
37003386293479696326742221809721581623	38	124.8	2021-12-20 08:49:10

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	1243 / 4588

Estimated T-Level: 36.4 ⓘ

TF below 2^116 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-21	Oliver Kruse	320CEF5C7FBE308D	4	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	320CEF5C7FBE308D	4	0	1	3
Verified (Factored)	2017-12-07	ATH	320CEF5C7FBE308D	4	13990	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	04ED01A905D4A1D1	4	7765	5	3
Verified	2021-12-20	mikr	04ED01A905D4A1D1	5	1133	5	3
Verified (Factored)	2022-05-12	Jorge Coveiro	04ED01A905D4A1D1	1	7686	5	3

History

Date	User	Type	Result
2023-05-24	JacobZ	NF-PM1	B1=6300000000, B2=14208439543047750
2022-05-12	Jorge Coveiro	C-PRP	M16883/33767 : 04ED01A905D4A1D1 PRP: Verified (Factored) PRP without proof (small exponent)
2021-12-20	mikr	C-PRP	M16883/33767/12054463/123014863177782481/322960136514206071730808578201/37003386293479696326742221809721581623 : 04ED01A905D4A1D1 PRP: Verified (Factored) PRP without proof (small exponent)
2021-12-20	nordi	F-ECM	Factor: 37003386293479696326742221809721581623 / (ECM curve 85, B1=3000000, B2=300000000, Sigma=8502019264483342)
2021-12-16	Lisander Viaene	NF-PM1	B1=100000000
2020-04-17	Oliver Kruse	C-PRP	M16883/33767/12054463/123014863177782481/322960136514206071730808578201 : 04ED01A905D4A1D1 PRP: Verified (Factored) PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M16883/33767/12054463/123014863177782481/322960136514206071730808578201 : 320CEF5C7FBE308D PRP: Verified (Factored) PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M16883/33767/12054463/123014863177782481/322960136514206071730808578201 : 320CEF5C7FBE308D PRP: Verified (Factored) PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M16883/33767/12054463/123014863177782481/322960136514206071730808578201 : 320CEF5C7FBE308D PRP without proof (not generated)
2011-04-05	James Hintz	F-ECM	Factor: 322960136514206071730808578201
2008-08-26	-Anonymous-	F-ECM	Factor: 123014863177782481
2008-08-26	-Anonymous-	F	Factor: 12054463