8 867 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
70937	5	16.1	old
9284174617	10	33.1	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	10831 / 16550

Estimated T-Level: 48.3 ⓘ

TF below 2^155 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	94CBF74E69890D31	2	0	1	3
Verified	2017-10-12	kkmrkkblmbrbk	94CBF74E69890D31	2	8734	1	3
Unverified	2020-04-17	Oliver Kruse	B6EBBB7487A08D__	2	7081	5	3

History

Date	User	Type	Result
2023-08-03	JacobZ	NF-PM1	B1=66000000000, B2=254680416808818000
2021-12-16	Lisander Viaene	NF-PM1	B1=100000000
2020-04-17	Oliver Kruse	C-PRP	M8867/70937/9284174617 : B6EBBB7487A08D__ PRP without proof (small exponent)
2017-10-12	kkmrkkblmbrbk	C-PRP	M8867/70937/9284174617 : 94CBF74E69890D31 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8867/70937/9284174617 : 94CBF74E69890D31 PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M8867/70937/9284174617 : 94CBF74E69890D31 PRP without proof (not generated)