101 377 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
4297937593748598158613817	25	81.8	2017-03-03 05:01:15
16361265579902577382575697	26	83.8	2009-10-04 04:49:52

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	329 / 1566

Estimated T-Level: 31.1 ⓘ

TF below 2^98 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Unknown	23D7	0
Verified (Factored)		Robert Clark	10DB7CCDC99CA3D7	0
Verified (Factored)		Brian J. Beesley	10DB7CCDC99CA3D7	0
Verified (Factored)		Eivind Triel	10DB7CCDC99CA3D7	74754

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-21	Oliver Kruse	79A31F1714B8A118	2	0	1	3
Verified	2017-10-09	Chang Chia-Tche	79A31F1714B8A118	2	0	1	3
Verified	2017-10-13	kkmrkkblmbrbk	79A31F1714B8A118	2	39276	1	3
Verified	2020-04-17	Oliver Kruse	A092979C7FF254EE	2	97067	5	3
Verified	2022-04-15	LordJulius	A092979C7FF254EE	2	49014	5	3
Verified	2022-10-27	LordJulius	A092979C7FF254EE	2	11729	5	3

History

Date	User	Type	Result
2022-10-27	LordJulius	C-PRP	M101377/4297937593748598158613817/16361265579902577382575697 : A092979C7FF254EE PRP: Verified PRP without proof (small exponent)
2022-04-15	LordJulius	C-PRP	M101377/4297937593748598158613817/16361265579902577382575697 : A092979C7FF254EE PRP: Verified PRP without proof (small exponent)
2022-04-13	LordJulius	NF	no factor from 2^61 to 2^62
2022-04-13	LordJulius	NF	no factor from 2^60 to 2^61
2022-04-13	LordJulius	NF	no factor from 2^59 to 2^60
2022-04-13	LordJulius	NF	no factor from 2^58 to 2^59
2022-04-13	LordJulius	NF	no factor from 2^1 to 2^57
2022-03-07	LordJulius	NF	no factor from 2^57 to 2^58
2021-12-19	Seth_Tr	NF-PM1	B1=1000000000, B2=6738787135080
2020-04-17	Oliver Kruse	C-PRP	M101377/4297937593748598158613817/16361265579902577382575697 : A092979C7FF254EE PRP: Verified PRP without proof (small exponent)
2018-10-25	J.R. Allen	NF	no factor from 2^52 to 2^57
2017-10-13	kkmrkkblmbrbk	C-PRP	M101377/4297937593748598158613817/16361265579902577382575697 : 79A31F1714B8A118 PRP: Verified PRP without proof (not generated)
2017-10-09	Chang Chia-Tche	C-PRP	M101377/known_factors : 79A31F1714B8A118 PRP: Verified PRP without proof (not generated)
2017-09-21	Oliver Kruse	C-PRP	M101377/known_factors : 79A31F1714B8A118 PRP without proof (not generated)
2017-03-03	kkmrkkblmbrbk	F-ECM	Factor: 4297937593748598158613817 / (ECM curve 68, B1=250000, B2=25000000)
2016-11-02	kkmrkkblmbrbk	NF-PM1	B1=100000000, B2=2000000000, E=12
2009-10-04	James Hintz	F-ECM	Factor: 16361265579902577382575697
2009-02-03	monst	NF	no factor from 2^59 to 2^60
2009-01-06	Sturle Sunde	NF	no factor from 2^58 to 2^59