8 117 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
2485053797104730732642299543	28	91.0	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	6563 / 9201

Estimated T-Level: 43.6 ⓘ

TF below 2^140 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	8B5CA59EDFAD3600	1	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	8B5CA59EDFAD3600	1	1461	1	3
Unverified	2020-04-17	Oliver Kruse	429D3DA104AF31__	1	753	5	3

History

Date	User	Type	Result
2023-06-10	JacobZ	NF-PM1	B1=73000000000, B2=299074993103236350
2021-12-16	Lisander Viaene	NF-PM1	B1=100000000
2020-04-17	Oliver Kruse	C-PRP	M8117/2485053797104730732642299543 : 429D3DA104AF31__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M8117/2485053797104730732642299543 : 8B5CA59EDFAD3600 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8117/2485053797104730732642299543 : 8B5CA59EDFAD3600 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8117/2485053797104730732642299543 : 8B5CA59EDFAD3600 PRP without proof (not generated)