12 101 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
413951009	9	28.6	old
47485842717006431	17	55.4	2008-08-26 19:58:36

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1282 / 9201

Estimated T-Level: 40.7 ⓘ

TF below 2^130 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	A87E9700F6651D70	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	A87E9700F6651D70	2	10129	1	3
Verified	2020-04-17	Oliver Kruse	946AEB9724F58FF6	2	159	5	3
Verified	2023-05-19	-Anonymous-	946AEB9724F58FF6	2	6258	5	3

History

Date	User	Type	Result
2023-05-19	-Anonymous-	C-PRP	M12101/413951009/47485842717006431 : 946AEB9724F58FF6 PRP: Verified PRP without proof (small exponent)
2023-04-06	-Anonymous-	NF-PM1	B1=100000000000, B2=122192573512709700
2020-04-17	Oliver Kruse	C-PRP	M12101/413951009/47485842717006431 : 946AEB9724F58FF6 PRP: Verified PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M12101/413951009/47485842717006431 : A87E9700F6651D70 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12101/413951009/47485842717006431 : A87E9700F6651D70 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12101/413951009/47485842717006431 : A87E9700F6651D70 PRP without proof (not generated)
2016-09-08	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=10000000000, E=12
2008-08-26	-Anonymous-	F-ECM	Factor: 47485842717006431