1 107 479 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
2214959	7	21.1	old
548421702559671122161546153	27	88.8	2018-06-15 13:09:46

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	100 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-09-29	Oliver Kruse	707B73595EC74C55	1	0	1	3
Verified (Factored)	2017-10-16	Oliver Kruse	707B73595EC74C55	1	582538	1	3
Verified (Factored)	2018-01-02	ATH	707B73595EC74C55	1	967197	1	3
Verified	2018-06-18	_p95holder_	8C94311A969D90F8	2	243841	5	3
Verified	2018-06-20	chuenkit	8C94311A969D90F8	2	502302	5	3
Verified	2018-06-21	Andrew B	8C94311A969D90F8	2	463825	5	3

History

Date	User	Type	Result
2018-06-21	Andrew B	C-PRP	M1107479/2214959/548421702559671122161546153 : 8C94311A969D90F8 PRP: Verified PRP without proof (not generated)
2018-06-20	chuenkit	C-PRP	M1107479/2214959/548421702559671122161546153 : 8C94311A969D90F8 PRP: Verified PRP without proof (not generated)
2018-06-18	_p95holder_	C-PRP	M1107479/2214959/548421702559671122161546153 : 8C94311A969D90F8 PRP: Verified PRP without proof (not generated)
2018-06-15	TJAOI	F-ECM	Factor: 548421702559671122161546153 / (ECM curve 31, B1=50000, B2=5000000)
2018-01-02	ATH	C-PRP	M1107479/2214959 : 707B73595EC74C55 PRP: Verified PRP without proof (not generated)
2017-10-16	Oliver Kruse	C-PRP	M1107479/2214959 : 707B73595EC74C55 PRP: Verified PRP without proof (not generated)
2017-09-29	Oliver Kruse	C-PRP	M1107479/2214959 : 707B73595EC74C55 PRP: Verified PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=300000, B2=10000000, E=12