2 575 627 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 2⁶³

Factored

Factor	Digits	Bits	Date
4243520625137	13	41.9	old

ECM

Digits	B1	Curves
25	50000	155 / 280

Estimated T-Level: 22.8 ⓘ

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)	2017-10-15	Oliver Kruse	93E6E5816E90EFF8	1	1953082	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	93E6E5816E90EFF8	1	595014	5	3

History

Date	User	Type	Result
2022-09-02	USAFSS	NF-PM1	B1=300000, B2=235092660
2017-12-01	storm5510	C-PRP	M2575627/4243520625137 : 93E6E5816E90EFF8
2017-10-15	Oliver Kruse	C-PRP	M2575627/4243520625137 : 93E6E5816E90EFF8

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