16 012 693 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
6081801660755678946553	22	72.4	2017-01-09 18:08:50

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)	2003-05-26	Alastair Rankine	031181F4FF5EA36C	37962
Verified (Factored)	2006-04-28	TheJudger	031181F4FF5EA36C	4564417

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-12-25	LOBES	778F829E794E4CCD	1	2137241	5	3

History

Date	User	Type	Result
2023-12-25	Georg_Edelmann	CERT	PRP Certification Proof certified good
2023-12-25	LOBES	C-PRP	M16012693/6081801660755678946553 : 778F829E794E4CCD PRP proof power = 8 PRP: Verified Proof certified good
2023-11-23	nordi	NF-PM1	B1=500000, B2=265291950
2023-11-21	nordi	NF-PM1	B1=500000
2023-09-08	nordi	NF-PM1	B1=400000
2017-01-09	ATH	F-ECM	Factor: 6081801660755678946553 / (ECM curve 1, B1=50000, B2=5000000)
2015-10-17	mikr	NF	no factor from 2^67 to 2^68
2013-10-28	Nesowa	NF	no factor from 2^66 to 2^67
2009-03-19	abc	NF	no factor to 2^66