2 358 877 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 2⁶²

Factored

Factor	Digits	Bits	Date
525935215921	12	38.9	old

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	123 / 640

Estimated T-Level: 26.0 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-10-12	Oliver Kruse	143D2225255CC2D4	1	447388	5	3
Verified	PRP without proof (not generated)	2017-11-24	storm5510	143D2225255CC2D4	1	495808	5	3

History

Date	User	Type	Result
2018-04-27	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-24	storm5510	C-PRP	M2358877/525935215921 : 143D2225255CC2D4
2017-10-12	Oliver Kruse	C-PRP	M2358877/525935215921 : 143D2225255CC2D4

Username
Password