5 479 807 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
117694576520058954593	21	66.7	2020-07-21 10:06:52
318326259707451798823	21	68.1	2015-05-12 00:26:13

ECM

Digits	B1	Curves
25	50000	4 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-09-13	Martin Koster	843BF7276965AFA9	0
Verified (Factored)	2001-04-15	Norm Bussiere	843BF7276965AFA9	2148988

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-12-04	Oliver Kruse	7591CD5B2FDB0BBD	1	4894879	5	3
Verified (Factored)	2018-03-20	kkmrkkblmbrbk	7591CD5B2FDB0BBD	1	1375333	5	3
Verified	2020-07-21	ATH	7591CD5B2FDB0BBD	2	3120899	5	3

History

Date	User	Type	Result
2022-06-22	LordJulius	NF	no factor from 2^65 to 2^66
2020-07-21	ATH	C-PRP	M5479807/318326259707451798823/117694576520058954593 : 7591CD5B2FDB0BBD PRP: Verified PRP without proof (not generated)
2020-07-21	TJAOI	F	Factor: 117694576520058954593 / TF: 66-67
2018-03-20	kkmrkkblmbrbk	C-PRP	M5479807/318326259707451798823 : 7591CD5B2FDB0BBD PRP: Verified PRP without proof (not generated)
2017-12-04	Oliver Kruse	C-PRP	M5479807/318326259707451798823 : 7591CD5B2FDB0BBD PRP: Verified PRP without proof (not generated)
2015-05-12	Sid & Andy	F-ECM	Factor: 318326259707451798823
2014-12-30	monst	NF	no factor from 2^64 to 2^65
2014-12-30	snme2pm1	NF	no factor from 2^63 to 2^64
2010-11-14	Squeeky_Squirrel	NF-PM1	B1=60000, B2=975000, E=6
2009-05-03	GrunwalderGIMP	NF	no factor from 2^62 to 2^63