4 995 547 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
377816186964919	15	48.4	old
314329316621879815715050303	27	88.0	2019-09-03 12:36:12

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-20	kkmrkkblmbrbk	C9DB3141600D9D65	1	0	1	3
Verified (Factored)	2018-04-22	ATH	C9DB3141600D9D65	1	4683408	1	3
Verified	2019-09-04	Niels_Mache_Nextcloud	60D534AD25692837	2	843090	5	3
Verified	2019-09-05	GAN	60D534AD25692837	2	2500318	5	3

History

Date	User	Type	Result
2023-12-16	USAFSS	NF-PM1	B1=256000, B2=105522060
2019-09-05	GAN	C-PRP	M4995547/377816186964919/314329316621879815715050303 : 60D534AD25692837 PRP: Verified PRP without proof (not generated)
2019-09-04	Niels_Mache_Nextcloud	C-PRP	M4995547/377816186964919/314329316621879815715050303 : 60D534AD25692837 PRP: Verified PRP without proof (not generated)
2019-09-03	ATH	F-ECM	Factor: 314329316621879815715050303 / (ECM curve 3, B1=50000, B2=5000000, Sigma=4860210726327387)
2018-04-22	ATH	C-PRP	M4995547/377816186964919 : C9DB3141600D9D65 PRP: Verified PRP without proof (not generated)
2017-09-20	kkmrkkblmbrbk	C-PRP	M4995547/377816186964919 : C9DB3141600D9D65 PRP: Verified PRP without proof (not generated)