6 978 287 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

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

Factored

Factor	Digits	Bits	Date
125609167	9	26.9	old
20990687297	11	34.3	2008-09-08 03:05:56
1077155094661553	16	49.9	2014-05-16 11:21:41

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2018-01-25	_p95holder_	74EEC1AAFC843D1E	3	2815759	5	3
Verified	2019-02-23	Yizhe Huang	74EEC1AAFC843D1E	3	3252412	5	3

History

Date	User	Type	Result
2024-01-03	Stef42	NF-PM1	B1=812000, B2=2068771320
2019-02-23	Yizhe Huang	C-PRP	M6978287/125609167/20990687297/1077155094661553 : 74EEC1AAFC843D1E PRP: Verified PRP without proof (not generated)
2018-01-25	_p95holder_	C-PRP	M6978287/125609167/20990687297/1077155094661553 : 74EEC1AAFC843D1E PRP: Verified PRP without proof (not generated)
2014-05-16	TJAOI	F	Factor: 1077155094661553
2008-09-08	Will Edgington	F	Factor: 20990687297