2 495 771 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 2⁶³

Factored

Factor	Digits	Bits	Date
4991543	7	22.3	old
927493014288809	15	49.7	2014-05-08 12:49:23

ECM

Digits	B1	Curves
25	50000	152 / 280

Estimated T-Level: 22.7 ⓘ

TF below 2^70 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)	2017-10-14	Oliver Kruse	BCEE4842FCB3B75F	2	657655	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	BCEE4842FCB3B75F	2	2195917	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-11-30	storm5510	C-PRP	M2495771/4991543/927493014288809 : BCEE4842FCB3B75F
2017-10-14	Oliver Kruse	C-PRP	M2495771/4991543/927493014288809 : BCEE4842FCB3B75F
2014-05-08	TJAOI	F	Factor: 927493014288809

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