1 806 803 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
3613607	7	21.8	old
986716754494904551	18	59.8	2015-07-11 07:39:52
244326231917086486697	21	67.7	2020-08-12 21:42:24

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 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)	2017-10-03	Oliver Kruse	730CE7B92159FACA	2	0	1	3
Verified (Factored)	2017-11-05	ATH	730CE7B92159FACA	2	1313438	1	3
Verified	2020-08-12	M Miller	3FD05DB453528BA7	3	584194	5	3

P-1 factors

Date	Factor	B1	B2
2015-07-11	986716754494904551	500000	15000000

History

Date	User	Type	Result
2020-08-13	George Woltman	CERT	PRP Certification Proof certified good
2020-08-12	M Miller	C-PRP	M1806803/3613607/986716754494904551/244326231917086486697 : 3FD05DB453528BA7 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-12	_p95holder_	F-ECM	Factor: 244326231917086486697 / (ECM curve 1, B1=50000, B2=5000000)
2017-11-05	ATH	C-PRP	M1806803/3613607/986716754494904551 : 730CE7B92159FACA PRP: Verified (Factored) PRP without proof (not generated)
2017-10-03	Oliver Kruse	C-PRP	M1806803/3613607/986716754494904551 : 730CE7B92159FACA PRP: Verified (Factored) PRP without proof (not generated)
2015-07-11	alpertron	F-PM1	Factor: 986716754494904551 / (P-1, B1=500000, B2=15000000, E=12)