1 778 663 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
3557327	7	21.8	old
143024299556335793	18	57.0	2015-05-15 11:23:08
39235353883480353647	20	65.1	2018-05-29 13:32:09

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-03	Oliver Kruse	97717D5EC0D7CBD3	2	0	1	3
Verified (Factored)	2017-11-04	ATH	97717D5EC0D7CBD3	2	789041	1	3
Verified	2018-06-01	_p95holder_	63F5D13E15CBDC74	3	338356	5	3
Verified	2018-06-01	Oliver Kruse	63F5D13E15CBDC74	3	1505318	5	3

History

Date	User	Type	Result
2022-03-08	LordJulius	NF	no factor from 2^64 to 2^65
2022-03-08	LordJulius	NF	no factor from 2^63 to 2^64
2022-03-08	LordJulius	NF	no factor from 2^62 to 2^63
2022-03-08	LordJulius	NF	no factor from 2^61 to 2^62
2022-03-08	LordJulius	NF	no factor from 2^57 to 2^61
2018-06-01	Oliver Kruse	C-PRP	M1778663/3557327/143024299556335793/39235353883480353647 : 63F5D13E15CBDC74 PRP: Verified PRP without proof (not generated)
2018-06-01	_p95holder_	C-PRP	M1778663/3557327/143024299556335793/39235353883480353647 : 63F5D13E15CBDC74 PRP: Verified PRP without proof (not generated)
2018-05-29	TJAOI	F	Factor: 39235353883480353647 / TF: 65-66
2017-11-04	ATH	C-PRP	M1778663/3557327/143024299556335793 : 97717D5EC0D7CBD3 PRP: Verified PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1778663/3557327/143024299556335793 : 97717D5EC0D7CBD3 PRP: Verified PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2015-05-15	TJAOI	F	Factor: 143024299556335793 / TF: 56-57