27 917 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
223337	6	17.8	old
702361549553661221042601151	27	89.2	2009-05-10 17:32:44

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	660 / 4588

Estimated T-Level: 35.7 ⓘ

TF below 2^114 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	41F7E334570F0709	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	41F7E334570F0709	2	18	1	3
Unverified	2020-04-17	Oliver Kruse	30FEA08BA113EE__	2	3059	5	3

History

Date	User	Type	Result
2023-03-21	nordi	NF-PM1	B1=3000000000, B2=925584566816910
2022-12-30	nordi	NF-PM1	B1=3000000000
2020-04-17	Oliver Kruse	C-PRP	M27917/223337/702361549553661221042601151 : 30FEA08BA113EE__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M27917/223337/702361549553661221042601151 : 41F7E334570F0709 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M27917/223337/702361549553661221042601151 : 41F7E334570F0709 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M27917/223337/702361549553661221042601151 : 41F7E334570F0709 PRP without proof (not generated)
2016-12-21	kkmrkkblmbrbk	NF-PM1	B1=500000000, B2=10000000000, E=12
2009-05-10	Matthias Wurtinger	F-ECM	Factor: 702361549553661221042601151