16 067 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
604843995194937757361	21	69.0	old
9939243891184095641743	22	73.1	2008-08-29 02:24:37
19533921814064639497310826385256807	35	113.9	2022-01-19 06:40:39

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	1377 / 4588

Estimated T-Level: 36.5 ⓘ

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	BB215834E829ECE2	2	0	1	3
Verified (Factored)	2017-10-02	kkmrkkblmbrbk	BB215834E829ECE2	2	0	1	3
Verified (Factored)	2017-12-07	ATH	BB215834E829ECE2	2	1175	1	3
Verified (Factored)	2020-04-17	Oliver Kruse	1275ED243D74A63C	2	12180	5	3
Verified	2022-01-19	mikr	1275ED243D74A63C	3	9442	5	3

History

Date	User	Type	Result
2023-05-28	JacobZ	NF-PM1	B1=6700000000, B2=30521152123562100
2023-02-12	USAFSS	NF-PM1	B1=60000000, B2=4543108760190
2022-02-06	Lisander Viaene	NF-PM1	B1=50000
2022-01-19	mikr	C-PRP	M16067/604843995194937757361/9939243891184095641743/19533921814064639497310826385256807 : 1275ED243D74A63C PRP: Verified PRP without proof (small exponent)
2022-01-19	nordi	F-ECM	Factor: 19533921814064639497310826385256807 / (ECM curve 70, B1=3000000, B2=300000000, Sigma=6222423332682596)
2020-04-17	Oliver Kruse	C-PRP	M16067/604843995194937757361/9939243891184095641743 : 1275ED243D74A63C PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M16067/604843995194937757361/9939243891184095641743 : BB215834E829ECE2 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M16067/604843995194937757361/9939243891184095641743 : BB215834E829ECE2 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M16067/604843995194937757361/9939243891184095641743 : BB215834E829ECE2 PRP without proof (not generated)
2008-08-29	-Anonymous-	F-ECM	Factor: 9939243891184095641743