267 667 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
32120041	8	24.9	old
395787359421444638293988183	27	88.4	2017-12-08 13:25:58

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	236 / 1566

Estimated T-Level: 30.8 ⓘ

TF below 2^97 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Factored	No proof (small exponent)	2017-09-22	Oliver Kruse	BD377A2C9DFD5AAC	1	0	1	3
Factored	No proof (small exponent)	2017-10-12	Oliver Kruse	BD377A2C9DFD5AAC	1	30397	1	3
Factored	No proof (small exponent)	2017-11-06	kkmrkkblmbrbk	BD377A2C9DFD5AAC	1	79228	1	3
Verified	No proof (small exponent)	2017-12-09	Yaroslav Berezhko	F6E7FC819FC90A57	2	100420	5	3
Verified	No proof (small exponent)	2017-12-09	Yaroslav Berezhko	F6E7FC819FC90A57	2	252849	5	3
Verified	No proof (small exponent)	2017-12-09	ATH	5152912960BB1D3B	2	126529	1	5
Verified	No proof (small exponent)	2017-12-09	Chun sung soo	F6E7FC819FC90A57	2	163209	5	3
Verified	No proof (small exponent)	2017-12-10	Oliver Kruse	5152912960BB1D3B	2	133067	1	5

History

Date	User	Type	Result
2024-10-22	yuriy_5-1	NF-PM1	B1=24625364, B2=6040018914930
2022-03-20	ANONYMOUS	NF-PM1	B1=5550000, B2=25042991610
2022-03-19	ANONYMOUS	NF-PM1	B1=5550000
2022-01-03	ANONYMOUS	NF-PM1	B1=100000
2017-12-10	Oliver Kruse	C-PRP	ERROR PARSING RESULT
2017-12-09	Chun sung soo	C-PRP	M267667/32120041/395787359421444638293988183 : F6E7FC819FC90A57
2017-12-09	ATH	C-PRP	ERROR PARSING RESULT
2017-12-09	Yaroslav Berezhko	C-PRP	M267667/32120041/395787359421444638293988183 : F6E7FC819FC90A57
2017-12-09	Yaroslav Berezhko	C-PRP	M267667/32120041/395787359421444638293988183 : F6E7FC819FC90A57
2017-12-08	TJAOI	F-ECM	Factor: 395787359421444638293988183
2017-11-06	kkmrkkblmbrbk	C-PRP	M267667/32120041 : BD377A2C9DFD5AAC
2017-10-12	Oliver Kruse	C-PRP	M267667/32120041 : BD377A2C9DFD5AAC
2017-09-22	Oliver Kruse	C-PRP	M267667/32120041 : BD377A2C9DFD5AAC
2017-09-22	Oliver Kruse	C-PRP	M267667/32120041 : BD377A2C9DFD5AAC