2 638 073 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
6724084022927	13	42.6	old
108984146992737377	18	56.6	2015-04-15 11:52:51

ECM

Digits	B1	Curves
25	50000	165 / 280

Estimated T-Level: 22.9 ⓘ

TF below 2^71 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)	2017-10-18	Oliver Kruse	0675D20199344CA7	2	1101518	5	3
Verified	PRP without proof (not generated)	2017-12-02	storm5510	0675D20199344CA7	2	722037	5	3

History

Date	User	Type	Result
2019-07-04	alpertron	NF-PM1	B1=2000000, B2=60000000, E=12
2017-12-02	storm5510	C-PRP	M2638073/6724084022927/108984146992737377 : 0675D20199344CA7
2017-10-18	Oliver Kruse	C-PRP	M2638073/6724084022927/108984146992737377 : 0675D20199344CA7
2015-04-15	TJAOI	F	Factor: 108984146992737377

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