2 494 979 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
192113383001	12	37.5	old
20927005619393	14	44.3	2008-09-30 14:37:06

ECM

Digits	B1	Curves
25	50000	134 / 280

Estimated T-Level: 22.4 ⓘ

TF below 2^69 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	71B1F844950D5B99	2	945815	5	3
Verified	PRP without proof (not generated)	2017-11-30	storm5510	71B1F844950D5B99	2	1879983	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	M2494979/192113383001/20927005619393 : 71B1F844950D5B99
2017-10-14	Oliver Kruse	C-PRP	M2494979/192113383001/20927005619393 : 71B1F844950D5B99
2008-09-30	markr	F	Factor: 20927005619393

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