Great Internet Mersenne Prime Search (GIMPS)

Prime95, also distributed as a command-line utility mprime under FreeBSD and Linux, is a freeware application written by George Woltman. It is used by Great Internet Mersenne Prime Search (GIMPS), a distributed computing project dedicated to Mersenne prime hunting. In overclocking circles, its also commonly used for stability testing.

This repo is a mirror to Free Mersenne Prime Search Software source code for Windows, Linux, FreeBSD, and Mac OS X.

You could download the latest code from GIMPS or release page.

Mirror rank from PrimeNet Top Overall Teams

Top producers for the last year.
This hourly report generated 2026-02-26 12:00 UTC

Rank	Team Name	Total GHz Days	90 day	30 day	7 day	1 day	TF	P-1	LL/PRP	DC	ECM	ECM-F
1	GIMPS.Russia	956185724					0.3		0.1		99.6
2	Slovakia	766141672	⬆ 1				0.1	97.8			2.0
3	POLAND	435339239	⬆ 1				0.2	99.0	0.1		0.6
4	PrimeNet	337599619	⬇ 2				0.1	97.4	0.3	0.4	1.9
5	-Too many Ones-	189676575					0.3	92.2			7.6
6	Ars Technica Team Prime Rib	55087291		⬆ 1				98.1	0.1	1.6	0.2
7	unRAID	33462894		⬇ 1				99.6	0.4
8	GIMPSChina	22541312					75.7	17.1	3.9	0.7	2.4
9	One Man Team	16976547						99.5	0.5
10	More Power!!!	14620296					13.7	56.4	1.8	0.8	27.2
11	GW's legions	12732923					0.1	0.9	30.3	0.9	67.9
12	UCM-curtisc	11900341	⬆ 1						99.3	0.7
13	Team-Deutschland	11084235	⬇ 1				4.0	6.9	0.5	0.1	88.4
14	TeamUK	7448114					40.3	5.4	18.5	1.3	34.4	0.1
15	szerverem.hu	7293573	⬆ 223				5.8	36.9	45.9	5.1	6.2
16	Porta Kruse	6433753	⬆ 19				2.0	0.2		0.1	91.6	6.1
17	GPU to 72	4657564	⬇ 2				57.9	24.2	0.5	3.9	13.4
18	SpongeBob SquarePants	3389069	⬇ 2					30.6	58.6	10.1	0.7
19	Numberphile	2921818	⬇ 1				29.7	41.1	21.5	6.5	1.0
20	tsc	2304566	⬇ 1	⬆ 1			89.9	6.0	1.6	0.2	2.2
21	UKRAINE	2095698	⬇ 1	⬆ 1			32.2	13.5	39.4	14.8
22	Dutch Power Cows	2013023	⬇ 5	⬇ 2			33.4	27.7	1.3	1.3	36.3
23	Wikipedia	1971358	⬆ 1				58.9	33.8	4.0	2.2	0.8
24	Swedes Of Primes	1479011	⬇ 2				0.4	83.1	14.0	2.5
25	GIMPS.USA	1384555	⬇ 2				4.1	0.2	3.8	1.6	90.2
26	GIMPS.Japan	1355010	⬇ 5				4.4	0.1	8.6	2.1	84.8
27	GIMPS.Occitania	1348262	⬇ 2					3.1				96.9
28	UW Eau Claire	973349	⬆ 90	⬆ 23	⬆ 1		81.2		13.7	5.1
29	MOXA	687875	⬇ 2	⬇ 1	⬇ 1		99.0		0.7	0.4
30	MBAi.Cloud	677683	⬇ 1		⬆ 1				100.0
31	MATHSareREAL	658316	⬇ 5	⬇ 2	⬇ 1		95.4		3.3	1.2
32	GIMPS.Korea	617241	⬆ 21	⬆ 1			88.2	4.5	6.3	0.7	0.1
33	Rechenkraft.net	472878	⬇ 5	⬇ 2			4.6	58.8	2.9	5.8	27.2	0.6
34	Terry Kim Team	465700	⬇ 3	⬇ 2			98.1		0.8	0.6
35	citizenscience.ru	437819	⬇ 5	⬇ 1			83.8	6.8	4.2	0.9	3.7	0.6
36	Buhr	430708	⬇ 2	⬇ 1			61.4	3.0	20.0	5.9	9.6
37	S485122	310363	⬇ 4	⬇ 1				95.0		5.0
38	Smoke-it	278686	⬇ 6	⬇ 1			90.8	6.8	1.7
39	YahsTeam	218280	⬆ 2	⬇ 1			88.5		9.5	2.0
40	nranks	211383	⬆ 4	⬆ 6			33.2	0.6	3.3	0.4	62.5
41	GIMPS Team Philippines	207427	⬆ 2	⬆ 1			78.4		2.4	1.6	16.3
42	NerdyGirls	206647	⬆ 4	⬇ 3	⬆ 1		1.8	41.5	7.4	49.2
43	randomteam	203902	⬇ 1	⬆ 1	⬆ 1	⬆ 1					100.0
44	Canada	203761	⬇ 4	⬇ 4	⬇ 2	⬇ 1		3.0	67.1	28.8
45	Team Tartan	191712	⬇ 7	⬇ 4					76.5	23.5
46	404 - "Primes not Found"	183424	⬆ 26	⬆ 7	⬆ 1		74.8		25.2
47	GIMPS China	169618	⬇ 11	⬇ 4	⬇ 1		94.1		2.4	0.4	2.8
48	Colorado School of Mines	154885	⬆ 65	⬆ 11	⬆ 2		88.7		8.6	2.7
49	BitMEX Research	149793	⬇ 10	⬇ 4	⬇ 1				95.4	4.6
50	OverclockerAustralia	147192	⬇ 2	⬇ 3	⬇ 1		59.7		21.2	15.6
51	Team China	123674	⬆ 3	⬇ 3					99.7	0.3
52	GIMPS.NZ	121080	⬇ 2	⬇ 3			79.3		9.6	11.1
53	Unicamp	115227	⬆ 6	⬆ 3	⬆ 1	⬆ 1	72.2	0.3	22.6	4.9
54	EgyptianPolymaths	115061	⬆ 2	⬆ 1	⬆ 1	⬇ 1		36.5			58.7
55	SASAKI	114507	⬇ 3	⬇ 3	⬇ 2		100.0
56	Cap'n Entropy's Cavalcade of Wonderment	109072	⬇ 7	⬇ 6			75.4	5.3	16.7	2.5
57	Wisconsin	106928	⬇ 6	⬇ 3			51.3		25.9	22.8
58	Hungary	97801				⬆ 1	0.5		1.9	2.3	95.1
59	GIMPS.France	94139	⬆ 10	⬆ 1		⬇ 1	11.8	51.3	5.0	16.9	14.7
60	SHADO	85246		⬆ 3					64.0	17.3	10.9	2.2
61	Net-Work	77032	⬆ 1	⬆ 1	⬆ 1		2.5	2.3			86.8
62	UIUC	76203	⬆ 6	⬆ 4	⬆ 1				70.4	29.6
63	Eratosthenes Sieve	73980	⬆ 2	⬆ 4	⬆ 1		0.7		98.1	1.1
64	Esperanto	70271	⬇ 1	⬆ 1	⬆ 1			24.9	13.4	61.6	0.2
65	Georgia Tech	67388	⬇ 28	⬇ 8	⬇ 4		90.2		9.7
66	AMD Users	66813	⬆ 5	⬆ 5			69.8		14.2	15.9
67	Team Israel	62227	⬇ 1	⬆ 3			97.1		1.3	1.7
68	GIMPS.NEO	61054	⬇ 1	⬆ 1					76.2	23.8
69	AJ	59421	⬆ 9	⬆ 5	⬆ 2				76.5	23.5
70	ParadoxZ Commando	59293	⬆ 3	⬆ 2					72.1	27.8
71	Team_Italia	58324	⬆ 5	⬆ 2	⬆ 3		2.6		67.6	22.9	2.1	4.1
72	Brno University of Technology	56688	⬇ 15	⬇ 4	⬆ 1			23.0	62.2	14.8
73	Team Belgium	54368	⬇ 3	⬆ 2	⬆ 2		1.4	7.6	35.1	14.0	41.9
74	S147127	53246	⬆ 3	⬆ 2	⬆ 2		23.7		10.9	65.4
75	LTT fans	51823	⬇ 14	⬇ 11	⬇ 6		38.2		8.9	1.2	51.7
76	Wile E. Coyote	51186	⬆ 3	⬆ 2	⬆ 1				78.5	3.6	17.9
77	ComputerraRU	50146	⬇ 13		⬆ 1		15.7		74.9	9.4
78	Team Finland	45317	⬇ 31	⬇ 17	⬇ 6		70.0	0.1	29.3		0.6
79	Team Viet Nam	44241	⬇ 24				27.6		30.1	31.8	10.5
80	Team Austria	41054	⬇ 5				98.8			1.2
81	Team H	36203	⬆ 1	⬆ 3	⬆ 1		10.5	1.0	88.1	0.5
82	Hermessz	35208	⬆ 1	⬆ 3	⬆ 1		62.5		37.5
83	MES-Team	34407	⬇ 9	⬇ 2	⬆ 1		71.3	7.6		21.1
84	LimePrime	33934	⬇ 4	⬇ 2	⬇ 3			7.7	87.0	5.4
85	huskers-gimps	33892	⬆ 11	⬆ 3	⬆ 2				73.4	26.6
86	HardOCP	33890							77.4	22.6
87	Debian	33239	⬆ 1		⬆ 1				98.3	1.7
88	socal_prime	33144	⬇ 7	⬇ 5	⬇ 3			0.9	66.7	32.2	0.1
89	Small-Team-2000	30331	⬇ 4						10.3	89.7
90	IOTA	29682	⬆ 148	⬆ 67			98.2			1.8
91	Turku	26045	⬆ 21	⬆ 18	⬆ 1				100.0
92	Costa Rica	25683	⬇ 1	⬇ 2	⬇ 1				75.8	23.9
93	á•™(⇀‸↼‶)á•—	23278	⬆ 36	⬇ 1			0.9		98.7	0.4
94	Channel 4	21931	⬆ 13	⬆ 3					83.0	17.0
95	The Fellowship of Infinity	21047	⬆ 20	⬆ 5	⬆ 1				99.5	0.5
96	Team Retired	20285	⬇ 2	⬇ 3	⬇ 1				27.0	10.4
97	PrimitiveRootsCircle	19507	⬆ 4	⬇ 1			29.6		44.3	23.6	2.5
98	NanJing Tech	19502	⬆ 140	⬆ 1					100.0
99	A Single Engineer	18433	⬇ 1	⬇ 1					71.2	28.8
100	Portland State University	18384	⬇ 10	⬇ 5	⬆ 4		22.1	25.6	39.1	13.1
101	VIPR	18360	⬆ 15	⬆ 15	⬆ 5		42.4		38.6	18.9
102	MurrayInfoSys	17987	⬆ 17	⬆ 5					65.5	34.5
103	SpartaAlumni	17589	⬇ 8	⬇ 1	⬇ 3				70.6	29.4
104	MadPoo	17270	⬇ 59	⬇ 13	⬇ 1			27.2		72.8
105	Team Norway	17099	⬇ 8	⬇ 11			81.1			4.5	14.3
106	Ozzie Prime	16665	⬇ 13	⬇ 3	⬆ 2			5.1	60.1	14.7		20.1
107	Quantus	16634	⬇ 20	⬇ 6	⬇ 6		7.3		27.9	26.8		38.0
108	Nerdfighters for Mersenne Primes	15289	⬇ 5	⬇ 4	⬇ 1		3.1		81.0	16.0
109	GIMPS.Portugal	14450	⬇ 4	⬆ 1			0.1	72.4		27.5
110	SETI.Germany	14419	⬆ 1	⬆ 7	⬆ 1			6.6	22.0	71.4
111	Spain	14417	⬇ 27	⬇ 3	⬇ 1				65.0	35.0
112	Team Slovenia	13713	⬇ 23	⬇ 7					73.4	26.6
113	moeses	13337	⬇ 5	⬇ 2					99.2	0.8
114	GIMPS.Taiwan	12906	⬇ 14	⬇ 8					85.8	13.7	0.1
115	Politeknik Banting, Selangor	12559	⬇ 23	⬇ 3			81.3		6.3	12.4
116	NUST	12235	⬆ 90	⬆ 8	⬆ 1		9.8	86.8		3.5
117	Hyperion	12010	⬇ 8	⬇ 4	⬇ 1				2.2	29.4
118	Mensa	11954	⬇ 1	⬆ 1	⬆ 1				78.9	21.1
119	Granada	11944	⬇ 15	⬇ 5	⬇ 1		34.1		6.5	58.9
120	Abacus	11121	⬆ 4						92.6	7.4
121	FREE ROBUX	10852	⬆ 117						100.0
122	Royal Military College of Canada	10691	⬆ 1	⬆ 1			89.7		7.9	2.4
123	FreeBSD	10084	⬇ 17	⬆ 3	⬆ 1		0.5		82.7	16.8
124	MES22-Team	9997	⬇ 25	⬇ 9	⬇ 1		100.0
125	Shaffer's Studio	9713	⬆ 2	⬆ 4	⬆ 4				87.7	12.2
126	Syntony	9702		⬆ 2						100.0
127	youngfun429	9451	⬇ 25	⬇ 9	⬇ 2				65.6	34.4
128	Com Systems (RU)	9262	⬆ 33	⬆ 9	⬆ 5	⬆ 5			67.2	32.8
129	Die Zeitfinder	9240	⬇ 19	⬇ 7	⬇ 1	⬇ 1			100.0
130	JiBoTeam	9096	⬆ 2	⬇ 3	⬇ 3	⬇ 1				100.0
131	Triangle	8839	⬇ 6	⬇ 1	⬇ 1	⬇ 1			96.2	3.8
132	Server66	8528	⬇ 2		⬇ 1	⬇ 1	100.0
133	Aiblspitz	8503	⬆ 3	⬆ 1	⬇ 1	⬇ 1	1.9	62.4	18.6	15.2	2.0
134	Furry Primes	8022	⬇ 1	⬇ 1			58.8		27.1	14.1
135	RobotechResearch	7833	⬆ 45	⬆ 50	⬆ 3				40.7	59.3
136	TurkishMath	7792	⬇ 15	⬇ 5	⬇ 1				90.2	9.8
137	irowiki	7786	⬇ 9	⬇ 1	⬇ 1					100.0
138	Team Splunk	7605	⬇ 3	⬇ 3	⬇ 1			28.1	71.9
139	University of Waterloo	7044	⬆ 5	⬆ 3					100.0
140	Brasil	6832	⬇ 6	⬇ 2					80.0	20.0
141	Prime Rib	6522	⬇ 27	⬇ 1					96.8	3.1
142	SU Prime Pirates	6437	⬇ 1	⬇ 1					61.5	38.5
143	WSU Cougars	6220	⬇ 5	⬇ 4	⬆ 1				62.5	37.5
144	Elisabeth-von-Thadden-Schule	6009	⬆ 4		⬆ 1				38.6	61.4
145	Team Christensen	5860	⬇ 2	⬇ 2	⬆ 1					100.0
146	GIMPS Romania	5555		⬇ 1	⬇ 3				100.0
147	The_Dude_Abides	5240	⬇ 8				37.0			50.8
148	nmbarek_team	4957	⬇ 26	⬇ 23					99.7	0.3
149	teamMALI	4901		⬇ 1	⬆ 2				79.3	20.6
150	Hong Kong GIMP	4898	⬆ 4	⬆ 1					63.7	36.3
151	zeit	4731	⬇ 11	⬇ 2	⬇ 2		2.3			97.7
152	Danpi for GIMPS	4710	⬇ 1	⬇ 2			100.0
153	Kabylie	4113	⬆ 2	⬆ 3	⬆ 1		15.6	3.9	37.9	42.6
154	Olympic College	4082	⬆ 2	⬆ 4	⬇ 1					100.0
155	3DCenter.org	3823	⬇ 10	⬇ 2							100.0
156	FactorMania	3357	⬆ 72	⬆ 10	⬆ 2			60.2			39.8
157	Crunching@EVGA	3311	⬆ 81	⬆ 27	⬆ 2				99.6	0.4
158	GIMPS.Hong Kong	3248	⬆ 1	⬆ 2	⬆ 3		3.2		47.5	49.3
159	Noam Karni Team	3156	⬆ 31	⬆ 13	⬆ 4				75.1	24.9
160	México mágico	3143	⬆ 25	⬆ 5	⬆ 4				75.4	24.6
161	Korea.Prime	3119	⬆ 31	⬆ 13	⬆ 11				75.4	24.6
162	International School of Beijing (ISB)	3082	⬇ 20	⬇ 10	⬇ 6				99.5	0.5
163	Team_Brazil	2999	⬆ 2		⬆ 2		83.1	0.2		16.7
164	Phi Kappa Theta	2824	⬆ 4	⬇ 5	⬇ 7				55.9	44.1
165	I Love Canadian Natural Resources	2507	⬇ 5	⬇ 1	⬆ 2	⬆ 1				100.0
166	Pi Rho	2498	⬆ 72	⬆ 41	⬆ 2	⬆ 1			67.2	32.8
167	The Prime Pioneers	2437	⬆ 30	⬆ 4	⬆ 2	⬆ 1	0.9	88.2		10.4	0.3
168	GIMPSMalaysia	2394	⬆ 45	⬆ 8	⬆ 2	⬆ 1			66.8	33.2
169	VRS_SE	2359	⬆ 3	⬆ 4	⬆ 2	⬆ 1			66.8	33.2
170	TunisianTeam	2303	⬇ 13	⬇ 9	⬇ 4	⬇ 5			33.6	66.4
171	Saudi Primes	2268	⬇ 4	⬆ 4	⬆ 3					100.0
172	GIMPS_KS	2193	⬆ 61	⬆ 5	⬆ 3				36.6	62.0	1.4
173	Subprime Searches	2002	⬇ 2	⬇ 5	⬆ 3		87.2			12.8
174	Optimists Prime	1887	⬇ 27	⬇ 28	⬇ 1			100.0
175	The Pensis	1869	⬆ 1	⬆ 4	⬆ 2					100.0
176	F=dp/dt	1845	⬆ 1	⬆ 4	⬆ 2				85.8	14.2
177	Obsidian	1821	⬆ 14	⬆ 4	⬆ 2					100.0
178	Zorin OS Crew	1718	⬇ 16	⬇ 16	⬇ 16				44.9	55.1
179	GIMPS_IOM	1712		⬆ 3	⬆ 1		100.0
180	His Dark Materials	1597	⬇ 11	⬆ 3	⬆ 1					54.0	45.9
181	ANDY	1586	⬇ 29	⬇ 27	⬆ 1				98.5	1.5
182	San Francisco	1586	⬇ 1	⬆ 4	⬆ 1				100.0
183	cr_colorado	1549	⬆ 10	⬆ 4	⬆ 1					100.0
184	TimE4This	1481	⬆ 2	⬆ 5	⬆ 1					100.0
185	CZAsTc	1447	⬆ 52	⬆ 6	⬆ 1				99.6	0.4
186	math.auth.gr	1355	⬆ 22	⬆ 7	⬆ 2				61.7	38.3
187	Happy	1341	⬆ 1	⬆ 7	⬆ 2						99.9
188	alan145	1184	⬇ 30	⬇ 10	⬇ 1		84.6	2.5		0.4	12.5
189	Morocco	1061	⬆ 49	⬆ 20	⬆ 1					100.0
190	AWC	801	⬆ 48	⬆ 41	⬆ 2				100.0
191	GIMPS Asturias	794	⬆ 7	⬆ 5	⬆ 2				99.6	0.4
192	Weatopians	793	⬆ 7	⬆ 5	⬆ 2				99.7	0.3
193	Sæve Nordic Prime	781	⬆ 7	⬆ 6	⬆ 2				100.0
194	hreid	776	⬇ 10	⬆ 6	⬆ 2				100.0
195	crazyBerlin	774	⬇ 13	⬆ 6	⬆ 2				100.0
196	Artists of Fine Art	768	⬇ 46	⬇ 26	⬆ 2				99.6	0.4
197	ISISS Valle Seriana	761	⬆ 4	⬆ 5	⬆ 3				99.6	0.4
198	BrainStone	708	⬇ 34	⬇ 8	⬇ 7					100.0
199	Join Us 😈	708	⬆ 10	⬆ 5	⬆ 2		100.0
200	Therian Primes	675	⬆ 38	⬆ 16	⬆ 2			21.8		78.2
201	SGDynamo Dresden	580	⬆ 1	⬆ 5	⬆ 2		100.0
202	PrimeObsession	539	⬆ 36	⬆ 6	⬆ 2					100.0
203	London Computation Club	478	⬆ 9	⬆ 7	⬆ 2					100.0
204	EggCelentes	466	⬇ 34	⬇ 35	⬆ 2					100.0
205	Czech National Team	353	⬇ 52	⬇ 2	⬆ 2		10.6			81.1	5.1
206	Team Dominik Radler	351	⬆ 1	⬆ 5	⬆ 2		100.0
207	/r/counting	337	⬆ 20	⬆ 5	⬆ 2
208	KnightLight	315	⬆ 7	⬆ 5	⬆ 2					99.3
209	Yurunago	276	⬆ 29	⬆ 22	⬆ 3					100.0
210	www.Adamek.biz	265	⬆ 7	⬆ 5	⬆ 4					100.0
211	Unteranger Primelurche	260	⬇ 7	⬆ 3	⬆ 2					100.0
212	Math Teachers of the World	259	⬆ 6	⬆ 5	⬆ 3				100.0
213	GIMPS Hams	253	⬆ 6	⬆ 5	⬆ 4			100.0
214	Team Bulgaria	226	⬇ 11	⬇ 9	⬇ 3						99.9
215	DividerHunt	221	⬆ 10	⬆ 6	⬆ 4		100.0
216	Manri Costa Rica	213	⬇ 38	⬇ 21	⬆ 4					100.0
217	yfinder	208	⬆ 5	⬆ 5	⬆ 4					100.0
218	30thousandwon	193	⬆ 5	⬆ 6	⬆ 5					100.0
219	miiro	140	⬆ 19	⬆ 12	⬆ 6		100.0
220	GIMPS.Peace	122	⬆ 11	⬆ 5	⬆ 4		44.7	55.3
221	TeamUbuntu	121	⬆ 9	⬆ 5	⬆ 5					100.0
222	FourthFloorFourEyes	46	⬆ 10	⬆ 6	⬆ 6	⬆ 1	100.0
223	TeamEc	43	⬇ 18	⬆ 4	⬆ 4	⬇ 1					100.0
224	PROMYS	23	⬆ 10	⬆ 5	⬆ 5						100.0
225	sannerud.com	10	⬆ 10	⬆ 5	⬆ 5						100.0