4 663 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
177367777000231	15	47.3	old
49887160924492609	17	55.5	old
20954549833647403177	20	64.2	old
16063587221872187250623	23	73.8	old
163488330826942886980079	24	77.1	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	9201 / 9201
50	44000000	16550 / 16550
55	110000000	16302 / 40830

Estimated T-Level: 52.0 ⓘ

TF below 2^168 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	45F867ECEA3C58C5	5	0	1	3
Verified	2017-10-02	kkmrkkblmbrbk	45F867ECEA3C58C5	5	0	1	3
Verified	2017-12-07	ATH	45F867ECEA3C58C5	5	46	1	3
Verified	2020-04-17	Oliver Kruse	8A9EC449ADAD0CCF	5	4322	5	3
Verified	2024-02-03	Wentao Huang	8A9EC449ADAD0CCF	5	2338	5	3

History

Date	User	Type	Result
2024-02-03	Wentao Huang	C-PRP	M4663/177367777000231/49887160924492609/20954549833647403177/16063587221872187250623/163488330826942886980079 : 8A9EC449ADAD0CCF PRP: Verified PRP without proof (small exponent)
2023-05-27	-Anonymous-	NF-PM1	B1=68000000000, B2=682015465283852700
2021-07-08	ViliamF	NF-PM1	B1=1000000000, B2=201000000000
2020-04-17	Oliver Kruse	C-PRP	M4663/177367777000231/49887160924492609/20954549833647403177/16063587221872187250623/163488330826942886980079 : 8A9EC449ADAD0CCF PRP: Verified PRP without proof (small exponent)
2017-12-07	ATH	C-PRP	M4663/177367777000231/49887160924492609/20954549833647403177/16063587221872187250623/163488330826942886980079 : 45F867ECEA3C58C5 PRP: Verified PRP without proof (small exponent)
2017-10-02	kkmrkkblmbrbk	C-PRP	M4663/177367777000231/49887160924492609/20954549833647403177/16063587221872187250623/163488330826942886980079 : 45F867ECEA3C58C5 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M4663/known_factors : 45F867ECEA3C58C5 PRP without proof (not generated)