8 402 419 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite, with 3 known prime factors. Cofactor is composite.

Trial Factored to 2⁶⁸

TF target 2⁶⁸

Factored

Factor	Digits	Bits	Date
941070929	9	29.8	old
53792286439	11	35.6	2008-09-08 04:32:24
221302911623	12	37.7	2008-09-08 04:32:24

Status	Proof	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-10-23	storm5510	7E28F74010D71338	3	2648118	5	3
Verified	PRP without proof (not generated)	2020-05-19	marssystems	7E28F74010D71338	3	6584052	5	3

History

Date	User	Type	Result
2024-03-11	Stef42	NF-PM1	B1=3000000, B2=5957542500
2020-05-19	marssystems	C-PRP	M8402419/941070929/53792286439/221302911623 : 7E28F74010D71338
2018-10-23	storm5510	C-PRP	M8402419/941070929/53792286439/221302911623 : 7E28F74010D71338
2008-09-08	Will Edgington	F	Factor: 221302911623
2008-09-08	Will Edgington	F	Factor: 53792286439