11 209 657 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
269031769	9	28.0	old
5554766171839	13	42.3	2008-09-08 07:27:49
1444609339368970391	19	60.3	2016-01-29 12:13:37

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-06-09	tottenhoff	13EBE1DF9EBE0C23	3	5029922	5	3

History

Date	User	Type	Result
2025-06-02	vsh	NF	no factor from 2^71 to 2^72
2025-05-09	vsh	NF-PM1	B1=10000000, B2=20021278200
2025-04-03	vsh	F	Factors: 269031769,5554766171839 / TF: 70-71
2025-02-20	vsh	NF	no factor from 2^69 to 2^70
2025-02-04	James Heinrich	NF	no factor from 2^68 to 2^69
2025-01-26	vsh	NF	no factor from 2^68 to 2^69
2025-01-26	vsh	NF	no factor from 2^68 to 2^69
2024-07-19	vsh	NF-PM1	B1=625000, B2=304213980
2024-06-11	vsh	NF-PM1	B1=312500, B2=132779010
2021-06-09	curtisc	CERT	PRP Certification Proof certified good
2021-06-09	tottenhoff	C-PRP	M11209657/269031769/5554766171839/1444609339368970391 : 13EBE1DF9EBE0C23 PRP proof power = 8 PRP: Verified Proof certified good
2016-01-29	TJAOI	F	Factor: 1444609339368970391 / TF: 60-61
2008-09-08	Will Edgington	F	Factor: 5554766171839