1 437 187 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
145827399005957082727	21	67.0	2009-09-20 06:14:29

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Cornelius Caesar	6BD0B8923A802D20	0
Verified (Factored)	1998-02-01	MIT Prime Team	6BD0B8923A802D20	0

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-30	Oliver Kruse	061F66B1D65F9212	1	0	1	3
Verified	2017-10-27	kkmrkkblmbrbk	061F66B1D65F9212	1	123745	1	3

History

Date	User	Type	Result
2017-10-27	kkmrkkblmbrbk	C-PRP	M1437187/145827399005957082727 : 061F66B1D65F9212 PRP: Verified PRP without proof (not generated)
2017-09-30	Oliver Kruse	C-PRP	M1437187/145827399005957082727 : 061F66B1D65F9212 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2009-09-20	SubPrime	F-ECM	Factor: 145827399005957082727