9 013 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 1 known prime factor. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
3897761594020778667193	22	71.7	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	7045 / 16550

Estimated T-Level: 47.1 ⓘ

TF below 2^152 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	No proof (small exponent)	2017-09-21	Oliver Kruse	AAACAA164A78AB2E	1	0	1	3
Verified	No proof (small exponent)	2017-10-12	kkmrkkblmbrbk	AAACAA164A78AB2E	1	4499	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	0BC6EBC7FD08D280	1	5763	5	3
Verified	No proof (small exponent)	2024-07-01	kkmrkkblmbrbk	0BC6EBC7FD08D280	1	5989	5	3

History

Date	User	Type	Result
2025-04-23	masser	NF-PP1	Start=128/11, B1=1000000000, B2=999000000000
2024-07-01	kkmrkkblmbrbk	C-PRP	M9013/3897761594020778667193 : 0BC6EBC7FD08D280
2023-07-19	JacobZ	NF-PM1	B1=65000000000, B2=264949161868441050
2021-07-16	Yizhe Huang	NF-PM1	B1=1300000, B2=13000000000
2020-04-17	Oliver Kruse	C-PRP	M9013/3897761594020778667193 : 0BC6EBC7FD08D280
2017-10-12	kkmrkkblmbrbk	C-PRP	M9013/3897761594020778667193 : AAACAA164A78AB2E
2017-09-21	Oliver Kruse	C-PRP	M9013/3897761594020778667193 : AAACAA164A78AB2E
2017-09-21	Oliver Kruse	C-PRP	M9013/3897761594020778667193 : AAACAA164A78AB2E