15 277 601 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
95061337470839799489247	23	76.3	2016-12-04 13:58:04

ECM

Digits	B1	Curves
25	50000	1 / 280

Estimated T-Level: 20.0 ⓘ

TF below 2^61 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	2002-06-09	EDNY	5E61A0F21400F97D	15045196
Verified (Factored)	2006-02-15	Eric Bravick	5E61A0F21400F97D	279055

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-07-08	Perig	D5ABF1E6823C2DE9	1	14275789	5	3

History

Date	User	Type	Result
2023-07-08	curtisc	CERT	PRP Certification Proof certified good
2023-07-08	Perig	C-PRP	M15277601/95061337470839799489247 : D5ABF1E6823C2DE9 PRP proof power = 8 PRP: Verified Proof certified good
2023-06-06	nordi	NF-PM1	B1=400000, B2=418099500
2023-05-17	nordi	NF-PM1	B1=400000
2016-12-04	ATH	F-ECM	Factor: 95061337470839799489247 / (ECM curve 1, B1=50000, B2=5000000)
2016-10-01	Tha	NF-PM1	B1=300000, B2=6000000, E=12
2016-03-16	Mark Rose	NF	no factor from 2^65 to 2^66
2014-05-28	Nesowa	NF	no factor from 2^66 to 2^67