1 108 463 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
241440385105176533047	21	67.7	2009-04-11 05:14:54

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 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)		David Slowinski	158D	0
Verified (Factored)		Paul Rogers	CD5216B21D47758D	0
Verified (Factored)	2002-04-20	S57483	CD5216B21D47758D	913351

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-29	Oliver Kruse	219625E93C5E1A77	1	0	1	3
Verified	2017-10-16	Oliver Kruse	219625E93C5E1A77	1	1004391	1	3
Verified	2018-01-02	ATH	219625E93C5E1A77	1	1069096	1	3

History

Date	User	Type	Result
2022-04-12	LordJulius	NF	no factor from 2^63 to 2^64
2022-04-12	LordJulius	NF	no factor from 2^62 to 2^63
2022-04-12	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-12	LordJulius	NF	no factor from 2^1 to 2^61
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^60
2018-01-02	ATH	C-PRP	M1108463/241440385105176533047 : 219625E93C5E1A77 PRP: Verified PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1108463/241440385105176533047 : 219625E93C5E1A77 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1108463/241440385105176533047 : 219625E93C5E1A77 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12
2009-04-11	Chang Chia-Tche	F-ECM	Factor: 241440385105176533047
2009-02-18	Sturle Sunde	NF	no factor from 2^60 to 2^61