5 439 253 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 2⁶⁶

Factored

Factor	Digits	Bits	Date
2061676906075653287	19	60.8	old

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2017-12-01	storm5510	4B9937BF611F14C8	1	1241775	5	3
Verified	PRP without proof (not generated)	2018-03-07	kkmrkkblmbrbk	4B9937BF611F14C8	1	3715338	5	3

History

Date	User	Type	Result
2025-06-01	Sid & Andy	NF-PM1	B1=5100000, B2=8563943850
2023-05-11	This -Anonymous-	NF-PM1	B1=50000, B2=1000000
2018-03-07	kkmrkkblmbrbk	C-PRP	M5439253/2061676906075653287 : 4B9937BF611F14C8
2017-12-01	storm5510	C-PRP	M5439253/2061676906075653287 : 4B9937BF611F14C8
1998-10-25	-anonymous-	F	Factor: 2061676906075653287
1998-10-04	-anonymous-	F	Factor: 2061676906075653287
1998-05-23	-anonymous-	F	Factor: 2061676906075653287
1998-03-31	-anonymous-	F	Factor: 2061676906075653287
1998-03-17	-anonymous-	F	Factor: 2061676906075653287