14 081 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

Composite, with 2 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁴⁴

Factored

Factor	Digits	Bits	Date
422431	6	18.7	old
61470212018025335685191311770239	32	105.6	2013-03-10 19:23:37

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	1566 / 1566
40	3000000	4588 / 4588
45	11000000	1518 / 9201

Estimated T-Level: 40.8 ⓘ

TF below 2^131 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	EA8788275F263642	2	0	1	3
Verified	No proof (small exponent)	2017-10-12	kkmrkkblmbrbk	EA8788275F263642	2	12221	1	3
Verified	No proof (small exponent)	2020-04-17	Oliver Kruse	E78609EDF991F632	2	7416	5	3
Verified	No proof (small exponent)	2024-07-01	kkmrkkblmbrbk	E78609EDF991F632	2	4513	5	3

History

Date	User	Type	Result
2025-02-17	masser	NF-PP1	Start=118/67, B1=430000000, B2=429570000000
2025-02-08	masser	NF-PP1	Start=2/7, B1=430000000, B2=429570000000
2025-01-20	masser	NF-PP1	Start=6/5, B1=430000000, B2=429570000000
2024-07-01	kkmrkkblmbrbk	C-PRP	M14081/422431/61470212018025335685191311770239 : E78609EDF991F632
2024-01-29	-anonymous-	NF-PM1	B1=100000000000, B2=122154521813133810
2023-05-23	JacobZ	NF-PM1	B1=7800000000, B2=32022192391138950
2023-02-11	USAFSS	NF-PM1	B1=30000000, B2=2010341563230
2022-02-06	ANONYMOUS	NF-PM1	B1=50000
2020-04-17	Oliver Kruse	C-PRP	M14081/422431/61470212018025335685191311770239 : E78609EDF991F632
2017-10-12	kkmrkkblmbrbk	C-PRP	M14081/422431/61470212018025335685191311770239 : EA8788275F263642
2017-09-21	Oliver Kruse	C-PRP	M14081/422431/61470212018025335685191311770239 : EA8788275F263642
2017-09-21	Oliver Kruse	C-PRP	M14081/422431/61470212018025335685191311770239 : EA8788275F263642
2013-03-10	BloodIce	F-ECM	Factor: 61470212018025335685191311770239