1 489 031 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
14830748761	11	33.8	old
133181910703	12	37.0	2008-07-15 10:02:08
191894754694561597252627619881639	33	107.2	2024-02-26 17:06:07

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	105 / 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
composite	Verified (Factored)	2017-10-01	Oliver Kruse	971B4B06C4F02DE6	2	0	1	3
composite	Verified (Factored)	2017-10-28	kkmrkkblmbrbk	971B4B06C4F02DE6	2	720279	1	3
composite	Verified	2024-02-26	Anton Tsvetkov	0345B6BFF4CBD71B	3	1051000	5	3

P-1 factors

Date	Factor	B1	B2
2024-02-26	191894754694561597252627619881639	5000000	1006114200

History

Date	User	Type	Result
2024-02-26	curtisc	CERT	PRP Certification Proof certified good
2024-02-26	Anton Tsvetkov	C-PRP	M1489031/14830748761/133181910703/191894754694561597252627619881639 : 0345B6BFF4CBD71B PRP proof power = 6 PRP: Verified Proof certified good
2024-02-26	Anton Tsvetkov	F-PM1	Factor: 191894754694561597252627619881639 / (P-1, B1=5000000, B2=1006114200)
2017-10-28	kkmrkkblmbrbk	C-PRP	M1489031/14830748761/133181910703 : 971B4B06C4F02DE6 PRP: Verified (Factored) PRP without proof (not generated)
2017-10-01	Oliver Kruse	C-PRP	M1489031/14830748761/133181910703 : 971B4B06C4F02DE6 PRP: Verified (Factored) PRP without proof (not generated)
2016-03-17	alpertron	NF-PM1	B1=500000, B2=15000000, E=12
2008-07-15	J Feitsma	F	Factor: 133181910703