2 870 701 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite, with 3 known prime factors. Cofactor is composite.

Factored

Factor	Digits	Bits	Date
114828041	9	26.8	old
1380709829787689	16	50.3	2014-05-23 11:51:42
84324927311580116222561	23	76.2	2018-05-20 00:12:02

ECM

Digits	B1	Curves
25	50000	91 / 280

Estimated T-Level: 21.6 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-23	Oliver Kruse	8FD421A332805856	2	420383	5	3
Verified (Factored)	2017-12-07	kkmrkkblmbrbk	8FD421A332805856	2	2329530	5	3
Verified	2018-05-20	ATH	8FD421A332805856	3	2625943	5	3

History

Date	User	Type	Result
2022-11-23	USAFSS	NF-PM1	B1=255000, B2=196319970
2018-05-20	ATH	C-PRP	M2870701/114828041/1380709829787689/84324927311580116222561 : 8FD421A332805856 PRP: Verified PRP without proof (not generated)
2018-05-20	alpertron	F-ECM	Factor: 84324927311580116222561 / (ECM curve 2, B1=50000, B2=5000000)
2017-12-07	kkmrkkblmbrbk	C-PRP	M2870701/114828041/1380709829787689 : 8FD421A332805856 PRP: Verified PRP without proof (not generated)
2017-10-23	Oliver Kruse	C-PRP	M2870701/114828041/1380709829787689 : 8FD421A332805856 PRP: Verified PRP without proof (not generated)
2014-05-23	TJAOI	F	Factor: 1380709829787689