3 973 253 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
30318986574697400647	20	64.7	2009-12-24 20:18:56
240119922701515407767	21	67.7	2022-05-26 12:47:53

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jeroen van Gelderen and friends	AFDBB31214441069	0
Verified (Factored)	1999-10-15	karl malbrain	AFDBB31214441069	2316846

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	5A3640EFAE22E9D8	1	0	1	3
Verified (Factored)	2018-01-02	Oliver Kruse	5A3640EFAE22E9D8	1	1666094	1	3
Verified	2022-06-01	XZT	0FA0358E05D0536E	2	2076960	5	3

P-1 factors

Date	Factor	B1	B2
2022-05-26	240119922701515407767	100000	113097600

History

Date	User	Type	Result
2022-09-27	Joss	NF-PM1	B1=1000000, B2=113097600
2022-06-01	sloops	CERT	PRP Certification Proof certified good
2022-06-01	XZT	C-PRP	M3973253/30318986574697400647/240119922701515407767 : 0FA0358E05D0536E PRP proof power = 7 PRP: Verified Proof certified good
2022-05-26	Joss	F-PM1	Factor: 240119922701515407767 / (P-1, B1=100000, B2=113097600)
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-04	Joss	NF-PM1	B1=90000
2018-01-02	Oliver Kruse	C-PRP	M3973253/30318986574697400647 : 5A3640EFAE22E9D8 PRP: Verified (Factored) PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M3973253/30318986574697400647 : 5A3640EFAE22E9D8 PRP: Verified (Factored) PRP without proof (not generated)
2009-12-24	Andrew B	F-ECM	Factor: 30318986574697400647
2009-07-27	Carsten Kossendey	NF-PM1	B1=20000, B2=285000