1 911 937 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
69649505579743	14	46.0	old
40023912798733559344013142311	29	95.0	2020-12-01 03:33:57

ECM

Digits	B1	Curves
25	50000	275 / 280

Estimated T-Level: 24.9 ⓘ

TF below 2^78 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-10-04	Oliver Kruse	68A71E2827C558DC	1	0	1	3
Verified (Factored)	2017-11-09	Chang Chia-Tche	68A71E2827C558DC	1	196373	1	3
Verified	2020-12-01	mrh	84D1DE397FD93A28	2	399378	5	3

History

Date	User	Type	Result
2020-12-01	Ben Delo	CERT	PRP Certification Proof certified good
2020-12-01	mrh	C-PRP	M1911937/69649505579743/40023912798733559344013142311 : 84D1DE397FD93A28 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-01	_p95holder_	F-ECM	Factor: 40023912798733559344013142311 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-09	Chang Chia-Tche	C-PRP	M1911937/69649505579743 : 68A71E2827C558DC PRP: Verified (Factored) PRP without proof (not generated)
2017-10-04	Oliver Kruse	C-PRP	M1911937/69649505579743 : 68A71E2827C558DC PRP: Verified (Factored) PRP without proof (not generated)
2016-03-16	alpertron	NF-PM1	B1=500000, B2=15000000, E=12