149 251 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
16716113	8	24.0	old
830767951633019242359228291678821287	36	119.3	2017-04-30 18:10:22

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	640 / 640
35	1000000	183 / 1566

Estimated T-Level: 30.6 ⓘ

TF below 2^97 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-09-22	Oliver Kruse	0A0D4D4F5D88C8E7	2	0	1	3
Verified	2017-10-11	kkmrkkblmbrbk	0A0D4D4F5D88C8E7	2	44498	1	3
Verified	2020-04-17	Oliver Kruse	FFCED5ACABD89D0E	2	60197	5	3
Verified	2024-02-03	Wentao Huang	FFCED5ACABD89D0E	2	4867	5	3

P-1 factors

Date	Factor	B1	B2
2017-04-30	830767951633019242359228291678821287	100000000	2000000000

History

Date	User	Type	Result
2024-02-03	Naegi Makoto	CERT	PRP Certification Proof certified good
2024-02-03	Wentao Huang	C-PRP	M149251/16716113/830767951633019242359228291678821287 : FFCED5ACABD89D0E PRP proof power = 5 PRP: Verified Proof certified good
2020-04-17	Oliver Kruse	C-PRP	M149251/16716113/830767951633019242359228291678821287 : FFCED5ACABD89D0E PRP: Verified PRP without proof (small exponent)
2017-10-11	kkmrkkblmbrbk	C-PRP	M149251/16716113/830767951633019242359228291678821287 : 0A0D4D4F5D88C8E7 PRP: Verified PRP without proof (small exponent)
2017-09-21	Oliver Kruse	C-PRP	M149251/known_factors : 0A0D4D4F5D88C8E7 PRP without proof (not generated)
2017-04-30	kkmrkkblmbrbk	F-PM1	Factor: 830767951633019242359228291678821287 / (P-1, B1=100000000, B2=2000000000, E=12)