2 487 211 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
574227377993	12	39.1	old
1219918043624879	16	50.1	2014-05-20 11:41:52

ECM

Digits	B1	Curves
25	50000	211 / 280

Estimated T-Level: 23.8 ⓘ

TF below 2^74 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	D592E4B3C595CBC6	2	468519	5	3
Verified	PRP without proof (not generated)	2017-11-29	storm5510	D592E4B3C595CBC6	2	722205	5	3

History

Date	User	Type	Result
2022-08-19	USAFSS	NF-PM1	B1=224000, B2=203668920
2017-11-29	storm5510	C-PRP	M2487211/574227377993/1219918043624879 : D592E4B3C595CBC6
2017-10-14	Oliver Kruse	C-PRP	M2487211/574227377993/1219918043624879 : D592E4B3C595CBC6
2014-05-20	TJAOI	F	Factor: 1219918043624879

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