5 212 787 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
3637117873511	13	41.7	old
46794060612104999	17	55.4	2015-01-21 12:40:40
7712727500738627793721	22	72.7	2021-09-27 12:03:44

ECM

Digits	B1	Curves
25	50000	25 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified (Factored)	2017-11-23	kkmrkkblmbrbk	8729ED7A1168867F	2	1080082	5	3
Verified (Factored)	2018-05-27	Battlemaxx	8729ED7A1168867F	2	2016312	5	3
Verified	2021-09-27	happy5214	8729ED7A1168867F	3	487237	5	3

P-1 factors

Date	Factor	B1	B2
2021-09-27	7712727500738627793721	2500000	2500000

History

Date	User	Type	Result
2021-10-23	happy5214	NF-PP1	Start=2/7, B1=1250000, B2=85000000
2021-10-23	happy5214	NF-PM1	B1=2500000, B2=240000000
2021-09-27	Ben Delo	CERT	PRP Certification Proof certified good
2021-09-27	happy5214	C-PRP	M5212787/3637117873511/46794060612104999/7712727500738627793721 : 8729ED7A1168867F PRP proof power = 7 PRP: Verified Proof certified good
2021-09-27	happy5214	F-PP1	Start=2/7, B1=1250000, Factor: 7712727500738627793721
2021-09-27	happy5214	F-PM1	Factor: 7712727500738627793721 / (P-1, B1=2500000)
2018-05-27	Battlemaxx	C-PRP	M5212787/3637117873511/46794060612104999 : 8729ED7A1168867F PRP: Verified (Factored) PRP without proof (not generated)
2017-11-23	kkmrkkblmbrbk	C-PRP	M5212787/3637117873511/46794060612104999 : 8729ED7A1168867F PRP: Verified (Factored) PRP without proof (not generated)
2015-01-21	TJAOI	F	Factor: 46794060612104999 / TF: 55-56