2 572 033 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
7889412871673	13	42.8	old

ECM

Digits	B1	Curves
25	50000	148 / 280

Estimated T-Level: 22.6 ⓘ

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)	2017-10-15	Oliver Kruse	B8FD44D0C93B3FA2	1	1285503	5	3
Verified	PRP without proof (not generated)	2017-12-01	storm5510	B8FD44D0C93B3FA2	1	399706	5	3

History

Date	User	Type	Result
2022-09-01	USAFSS	NF-PM1	B1=300000, B2=258641460
2017-12-01	storm5510	C-PRP	M2572033/7889412871673 : B8FD44D0C93B3FA2
2017-10-15	Oliver Kruse	C-PRP	M2572033/7889412871673 : B8FD44D0C93B3FA2

Username
Password