12 613 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
46287337597787766064587745247761264207	38	125.1	2009-03-05 15:09:12

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1639 / 9201

Estimated T-Level: 40.9 ⓘ

TF below 2^131 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	241D	0
Verified (Factored)		George Woltman	5710DEAFAD70241D	0
Verified (Factored)		Brian J. Beesley	5710DEAFAD70241D	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	91CADDACAD2421FD	1	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	91CADDACAD2421FD	1	7464	1	3
Unverified	2020-04-17	Oliver Kruse	BE6940541DE089__	1	4444	5	3

History

Date	User	Type	Result
2023-05-13	Anton Repko	NF-PM1	B1=100000000000, B2=120417199046794650
2020-04-17	Oliver Kruse	C-PRP	M12613/46287337597787766064587745247761264207 : BE6940541DE089__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M12613/46287337597787766064587745247761264207 : 91CADDACAD2421FD PRP without proof (not generated)
2009-03-05	-Anonymous-	F-ECM	Factor: 46287337597787766064587745247761264207