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 2026-02-23 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	956231125					0.3		0.1		99.6
2	Slovakia	766355245	⬆ 1				0.1	97.8			2.0
3	POLAND	443975575	⬆ 1	⬆ 1	⬆ 1		0.2	99.0	0.1		0.6
4	PrimeNet	338058444	⬇ 2	⬇ 1	⬇ 1		0.1	97.4	0.3	0.4	1.9
5	-Too many Ones-	189694670					0.3	92.2			7.6
6	Ars Technica Team Prime Rib	51453201		⬆ 1				97.9	0.1	1.7	0.2
7	unRAID	33468902		⬇ 1				99.6	0.4
8	GIMPSChina	22476275					76.1	17.0	4.0	0.7	2.1
9	One Man Team	16976547						99.5	0.5
10	More Power!!!	14611554					13.8	56.4	1.8	0.8	27.3
11	GW's legions	12733483					0.1	0.9	30.2	0.8	68.0
12	UCM-curtisc	11911331	⬆ 1						99.3	0.7
13	Team-Deutschland	11441178	⬇ 1				3.9	6.6	0.6	0.1	88.8
14	TeamUK	7438624					40.2	5.5	18.5	1.3	34.4	0.1
15	szerverem.hu	7293573	⬆ 222				5.8	36.9	45.9	5.1	6.2
16	Porta Kruse	6435131	⬆ 19				2.0	0.2		0.1	91.6	6.1
17	GPU to 72	4647573	⬇ 2				58.6	23.8	0.5	3.9	13.2
18	SpongeBob SquarePants	3447992	⬇ 2				0.1	30.2	58.3	10.3	1.1
19	Numberphile	2921962	⬇ 1				29.7	41.0	21.5	6.5	1.0
20	tsc	2243523	⬇ 1	⬆ 1			89.6	6.1	1.7	0.2	2.3
21	UKRAINE	2109923	⬇ 1	⬆ 1			32.4	13.5	39.0	15.0
22	Dutch Power Cows	2032926	⬇ 5	⬇ 2			33.4	27.9	1.3	1.3	36.1
23	Wikipedia	1968851	⬆ 1				58.8	33.9	4.0	2.3	0.8
24	Swedes Of Primes	1483756	⬇ 2				0.4	83.1	14.0	2.5
25	GIMPS.USA	1385151	⬇ 2				4.1	0.2	3.8	1.6	90.2
26	GIMPS.Japan	1348537	⬇ 5				4.4	0.1	8.2	2.0	85.2
27	GIMPS.Occitania	1347137	⬇ 2					2.9				97.1
28	UW Eau Claire	839263	⬆ 90	⬆ 25	⬆ 3		79.9		15.1	5.0
29	MOXA	697923	⬇ 2	⬇ 1	⬇ 1		98.9		0.8	0.3
30	MBAi.Cloud	664207	⬇ 1						100.0
31	MATHSareREAL	662700	⬇ 5	⬇ 2	⬇ 2		95.5		3.3	1.2
32	GIMPS.Korea	599356	⬆ 22	⬆ 2			88.1	4.6	6.4	0.8	0.1
33	Rechenkraft.net	474943	⬇ 5	⬇ 2			4.6	59.0	2.9	5.9	27.0	0.6
34	Terry Kim Team	470067	⬇ 3	⬇ 2			98.1		0.8	0.6
35	citizenscience.ru	437269	⬇ 5	⬇ 2			83.6	7.0	4.2	0.9	3.7	0.6
36	Buhr	428218	⬇ 2	⬇ 1			61.7	3.0	20.1	6.1	9.2
37	S485122	310888	⬇ 4					95.0		5.0
38	Smoke-it	281208	⬇ 6	⬇ 2			90.9	6.7	1.7
39	YahsTeam	221278	⬆ 2	⬇ 1			88.2		9.8	2.0
40	nranks	211536	⬆ 5	⬆ 6			33.3	0.6	3.3	0.4	62.5
41	GIMPS Team Philippines	206882	⬆ 1	⬆ 2			79.4		2.0	1.6	15.8
42	NerdyGirls	206877	⬆ 4	⬇ 3	⬆ 1		2.0	41.4	7.4	49.1
43	Canada	205258	⬇ 3	⬇ 3	⬇ 1			3.0	67.4	28.5
44	randomteam	203902	⬇ 1								100.0
45	Team Tartan	193157	⬇ 6	⬇ 3					76.7	23.3
46	404 - "Primes not Found"	176038	⬆ 26	⬆ 9	⬆ 1		73.8		26.2
47	GIMPS China	169564	⬇ 11	⬇ 6	⬇ 1		94.2		2.4	0.4	2.8
48	BitMEX Research	151253	⬇ 10	⬇ 3					95.5	4.5
49	Colorado School of Mines	149514	⬆ 68	⬆ 10	⬆ 1		88.3		8.9	2.8
50	OverclockerAustralia	147192	⬇ 2	⬇ 3	⬇ 1		59.7		21.2	15.6
51	Team China	125188	⬆ 2	⬇ 3					99.7	0.3
52	GIMPS.NZ	120718	⬇ 2	⬇ 3			79.2		9.6	11.2
53	EgyptianPolymaths	115531	⬆ 3	⬆ 1	⬆ 3			35.4			59.9
54	Unicamp	115227	⬆ 5	⬆ 3		⬆ 1	72.2	0.3	22.6	4.9
55	SASAKI	114498	⬇ 3	⬇ 4	⬇ 2	⬇ 1	100.0
56	Cap'n Entropy's Cavalcade of Wonderment	111068	⬇ 7	⬇ 6	⬇ 1		74.8	5.1	17.6	2.5
57	Wisconsin	107690	⬇ 6	⬇ 5			51.5		25.9	22.6
58	Hungary	93158					0.5		2.0	2.4	94.8
59	GIMPS.France	92567	⬆ 10	⬆ 2	⬆ 1		12.0	50.1	5.1	17.6	14.9
60	SHADO	84477	⬆ 1	⬆ 3	⬆ 1				63.7	17.4	11.0	2.2
61	Net-Work	77433	⬆ 1	⬆ 1	⬆ 1		2.4	2.3			86.8
62	UIUC	76591	⬆ 6	⬆ 5	⬆ 1	⬆ 1			70.0	30.0
63	Eratosthenes Sieve	75261	⬆ 2	⬆ 3	⬆ 1	⬆ 1	0.7		98.5	0.7
64	Georgia Tech	74454	⬇ 27	⬇ 8	⬇ 5	⬇ 2	91.2		8.8
65	Esperanto	70980	⬇ 2					24.6	14.3	60.9	0.2
66	AMD Users	65329	⬆ 5	⬆ 5	⬆ 4		71.4		14.6	14.0
67	Team Israel	62609	⬇ 1	⬆ 3			97.1		1.3	1.6
68	GIMPS.NEO	62599	⬇ 1	⬆ 1	⬆ 1				76.7	23.3
69	AJ	59400	⬆ 8	⬆ 5	⬆ 3				76.5	23.5
70	ParadoxZ Commando	59030	⬆ 3	⬆ 2	⬆ 3				72.5	27.5
71	Team_Italia	58065	⬆ 5	⬆ 2	⬆ 3		2.6		67.9	22.5	2.1	4.1
72	Brno University of Technology	56688	⬇ 15	⬇ 4	⬇ 1			23.0	62.2	14.8
73	LTT fans	55524	⬇ 13	⬇ 9	⬇ 7		41.9		8.3	1.5	48.3
74	Team Belgium	54802	⬇ 4	⬆ 1	⬆ 1		1.4	7.5	34.8	14.3	42.0
75	S147127	53859	⬆ 3	⬆ 2	⬆ 1		23.1		12.2	64.7
76	Wile E. Coyote	51698	⬆ 3	⬆ 2	⬆ 1				79.2	3.6	17.3
77	Team Finland	50507	⬇ 30	⬇ 17	⬇ 9		73.1	0.1	26.2		0.5
78	ComputerraRU	49358	⬇ 14	⬇ 2			15.9		74.5	9.5
79	Team Viet Nam	44241	⬇ 24				27.6		30.1	31.8	10.5
80	Team Austria	41380	⬇ 5				98.8			1.2
81	Team H	36141	⬆ 1	⬆ 3	⬆ 1		10.3	1.0	88.2	0.5
82	Hermessz	35208	⬆ 1	⬆ 3	⬆ 2		62.5		37.5
83	MES-Team	34815	⬇ 9	⬇ 2			71.4	7.7		20.9
84	LimePrime	34718	⬇ 4	⬇ 2	⬇ 3			7.5	87.2	5.3
85	huskers-gimps	33892	⬆ 12	⬆ 3	⬆ 1	⬆ 3			73.4	26.6
86	HardOCP	33650			⬆ 1	⬇ 1			78.0	22.0
87	Debian	33236	⬆ 2		⬆ 1				98.3	1.7
88	socal_prime	32591	⬇ 7	⬇ 5	⬇ 3	⬇ 2		0.9	65.4	33.4	0.1
89	Small-Team-2000	30039	⬇ 4						10.4	89.6
90	IOTA	28145	⬆ 147	⬆ 122	⬆ 3		98.1			1.9
91	Turku	25201	⬆ 18	⬆ 24					100.0
92	Costa Rica	24879	⬇ 1	⬇ 1	⬇ 2				75.0	24.7
93	á•™(⇀‸↼‶)á•—	23274	⬆ 41	⬆ 1	⬇ 1		0.9		98.7	0.4
94	Channel 4	21932	⬆ 16	⬆ 2					83.0	17.0
95	The Fellowship of Infinity	21047	⬆ 19	⬆ 5	⬆ 1				99.5	0.5
96	Team Retired	20336	⬇ 2	⬇ 3	⬇ 1				26.9	10.4
97	PrimitiveRootsCircle	19507	⬆ 4				29.6		44.3	23.6	2.5
98	NanJing Tech	19502	⬆ 139	⬆ 1					100.0
99	A Single Engineer	19199	⬇ 1	⬇ 1					72.3	27.7
100	MurrayInfoSys	17721	⬆ 19	⬆ 8	⬆ 2				66.5	33.5
101	MadPoo	17697	⬇ 57	⬇ 11	⬆ 2			26.6		73.4
102	SpartaAlumni	17589	⬇ 7		⬇ 2				70.6	29.4
103	VIPR	17586	⬆ 12	⬆ 14	⬆ 5	⬆ 1	39.9		40.3	19.8
104	Portland State University	17542	⬇ 14	⬇ 9		⬇ 1	23.2	26.8	36.2	13.8
105	Team Norway	17159	⬇ 9	⬇ 13			80.8			4.4	14.6
106	Quantus	16851	⬇ 19	⬇ 5	⬇ 5		7.2		27.6	27.7		37.5
107	Ozzie Prime	16665	⬇ 14	⬇ 4				5.1	60.1	14.7		20.1
108	Nerdfighters for Mersenne Primes	16053	⬇ 3	⬇ 3	⬇ 2		2.9		81.9	15.2
109	GIMPS.Portugal	14474	⬇ 5		⬆ 1		0.1	72.3		27.6
110	SETI.Germany	14419	⬆ 2	⬆ 6	⬆ 2			6.6	22.0	71.4
111	Spain	14417	⬇ 27	⬇ 4					65.0	35.0
112	Team Slovenia	13927	⬇ 24	⬇ 8	⬇ 3				72.3	27.7
113	moeses	13337	⬇ 6	⬇ 3					99.2	0.8
114	GIMPS.Taiwan	12908	⬇ 14	⬇ 8	⬆ 1				85.8	13.8	0.1
115	Politeknik Banting, Selangor	12559	⬇ 23	⬇ 4	⬇ 1		81.3		6.3	12.4
116	NUST	12234	⬆ 96	⬆ 12	⬆ 1		9.8	86.8		3.5
117	Hyperion	12129	⬇ 9	⬇ 4	⬇ 1				2.1	29.2
118	Granada	11962	⬇ 12	⬇ 6			34.1		6.5	58.8
119	Mensa	11954	⬇ 3						78.9	21.1
120	Abacus	11124	⬆ 4						92.6	7.4
121	FREE ROBUX	10852	⬆ 116						100.0
122	Royal Military College of Canada	10691	⬆ 1	⬆ 1			89.7		7.9	2.4
123	MES22-Team	9997	⬇ 24	⬇ 9			100.0
124	FreeBSD	9831	⬇ 21		⬆ 3		0.5		84.9	14.7
125	Syntony	9699	⬆ 1	⬆ 4	⬆ 1					100.0
126	youngfun429	9451	⬇ 24	⬇ 8	⬇ 1				65.6	34.4
127	JiBoTeam	9370	⬆ 4		⬆ 1					100.0
128	Die Zeitfinder	9240	⬇ 17	⬇ 6	⬇ 4				100.0
129	Shaffer's Studio	8932	⬇ 2	⬇ 3					86.5	13.4
130	Triangle	8839	⬇ 5						96.2	3.8
131	Server66	8528	⬇ 2	⬆ 1			100.0
132	Aiblspitz	8503	⬆ 5	⬆ 2	⬆ 1		1.9	62.4	18.6	15.2	2.0
133	Com Systems (RU)	8480	⬆ 28	⬆ 4	⬇ 1				64.2	35.8
134	Furry Primes	8022	⬇ 2	⬇ 1			58.8		27.1	14.1
135	TurkishMath	7792	⬇ 14	⬇ 4					90.2	9.8
136	irowiki	7744	⬇ 8	⬇ 1						100.0
137	Team Splunk	7605	⬇ 2	⬇ 1				28.1	71.9
138	RobotechResearch	7578	⬆ 42	⬆ 47	⬆ 20				42.1	57.9
139	University of Waterloo	7044	⬆ 5	⬆ 4	⬇ 1				100.0
140	Brasil	7034	⬇ 7	⬇ 2					77.7	22.2
141	Prime Rib	6522	⬇ 28	⬇ 1	⬇ 2				96.8	3.1
142	SU Prime Pirates	6437		⬇ 1	⬇ 1				61.5	38.5
143	WSU Cougars	6239	⬇ 4	⬇ 4					62.3	37.7
144	Elisabeth-von-Thadden-Schule	6009	⬆ 4	⬇ 2	⬆ 1				38.6	61.4
145	Team Christensen	5860	⬇ 5	⬇ 1	⬇ 1					100.0
146	GIMPS Romania	5555		⬇ 1	⬇ 4				100.0
147	The_Dude_Abides	5229	⬇ 9		⬇ 1		37.1			50.9
148	nmbarek_team	4960	⬇ 26	⬇ 23	⬇ 1				99.6	0.4
149	Hong Kong GIMP	4904	⬆ 10	⬆ 2		⬆ 1			63.6	36.4
150	teamMALI	4901	⬇ 1	⬇ 2		⬆ 1			79.3	20.6
151	zeit	4731	⬇ 10	⬇ 2	⬇ 3	⬇ 2	2.3			97.7
152	Danpi for GIMPS	4710	⬇ 1	⬇ 2	⬇ 1		100.0
153	Olympic College	4423	⬆ 2	⬆ 4						100.0
154	Kabylie	4113		⬆ 2			15.6	3.9	37.9	42.6
155	3DCenter.org	3890	⬇ 10	⬇ 2							100.0
156	FactorMania	3357	⬆ 75	⬆ 10	⬆ 4			60.2			39.8
157	Crunching@EVGA	3311	⬆ 80	⬆ 27	⬆ 4				99.6	0.4
158	GIMPS.Hong Kong	3248		⬆ 2	⬆ 4		3.2		47.5	49.3
159	Noam Karni Team	3156	⬆ 31	⬆ 11	⬆ 11				75.1	24.9
160	México mágico	3143	⬆ 26	⬆ 5	⬆ 4				75.4	24.6
161	Korea.Prime	3119	⬆ 31	⬆ 12	⬆ 11	⬆ 9			75.4	24.6
162	International School of Beijing (ISB)	3082	⬇ 19	⬇ 10	⬇ 6	⬇ 1			99.5	0.5
163	Team_Brazil	2999	⬆ 2		⬆ 2	⬇ 1	83.1	0.2		16.7
164	Phi Kappa Theta	2823	⬆ 4	⬇ 5	⬇ 7	⬇ 1			55.9	44.1
165	TunisianTeam	2513	⬇ 9	⬇ 4	⬇ 6	⬇ 1			30.8	69.2
166	I Love Canadian Natural Resources	2507	⬇ 6	⬇ 2	⬆ 1	⬇ 1				100.0
167	Pi Rho	2498	⬆ 70	⬆ 40	⬆ 1	⬇ 1			67.2	32.8
168	The Prime Pioneers	2437	⬆ 29	⬆ 4	⬆ 1	⬇ 1	0.9	88.2		10.4	0.3
169	GIMPSMalaysia	2394	⬆ 45	⬆ 6	⬆ 6	⬇ 1			66.8	33.2
170	VRS_SE	2359	⬆ 2	⬆ 1	⬆ 1	⬇ 1			66.8	33.2
171	Saudi Primes	2268	⬇ 4	⬆ 3	⬆ 2					100.0
172	GIMPS_KS	2193	⬆ 65	⬆ 5	⬆ 2				36.6	62.0	1.4
173	Subprime Searches	2002	⬇ 2	⬇ 6	⬆ 3	⬆ 1	87.2			12.8
174	Optimists Prime	1964	⬇ 27	⬇ 28	⬇ 8	⬇ 1		100.0
175	The Pensis	1869	⬆ 1	⬆ 3	⬆ 2					100.0
176	F=dp/dt	1845	⬆ 1	⬆ 3	⬆ 2				85.8	14.2
177	Obsidian	1821	⬆ 14	⬆ 3	⬆ 2					100.0
178	Zorin OS Crew	1718	⬇ 16	⬇ 16	⬇ 15				44.9	55.1
179	GIMPS_IOM	1712		⬆ 2	⬆ 1		100.0
180	His Dark Materials	1615	⬇ 11	⬆ 3	⬆ 1					53.4	46.5
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	⬆ 1	⬆ 5	⬆ 1					100.0
185	CZAsTc	1447	⬆ 51	⬆ 5	⬆ 2				99.6	0.4
186	math.auth.gr	1355	⬆ 21	⬆ 6	⬆ 2				61.7	38.3
187	Happy	1341	⬆ 1	⬆ 6	⬆ 2						99.9
188	alan145	1285	⬇ 31	⬇ 12	⬇ 2		78.0	2.3		0.4	19.3
189	Morocco	1060	⬆ 48	⬆ 20	⬆ 3					100.0
190	BrainStone	955	⬇ 26	⬇ 8						100.0
191	AWC	801	⬆ 46	⬆ 43					100.0
192	GIMPS Asturias	794	⬆ 6	⬆ 3	⬆ 1				99.6	0.4
193	Weatopians	793	⬆ 6	⬆ 3	⬆ 1				99.7	0.3
194	Sæve Nordic Prime	781	⬆ 6	⬆ 3	⬆ 1				100.0
195	hreid	776	⬇ 11	⬆ 4	⬆ 1				100.0
196	crazyBerlin	774	⬇ 14	⬆ 4	⬆ 2				100.0
197	UCLA Linux Users Group	769	⬇ 34	⬇ 9	⬆ 2	⬆ 1			100.0
198	Artists of Fine Art	768	⬇ 48	⬇ 29	⬇ 1	⬇ 1			99.6	0.4
199	ISISS Valle Seriana	761	⬆ 2	⬆ 3	⬆ 1				99.6	0.4
200	Join Us 😈	708	⬆ 8	⬆ 4	⬆ 1		100.0
201	Therian Primes	616	⬆ 36	⬆ 16	⬆ 1			14.3		85.7
202	SGDynamo Dresden	580		⬆ 4	⬆ 1		100.0
203	PrimeObsession	539	⬆ 34	⬆ 5	⬆ 1					100.0
204	London Computation Club	478	⬆ 7	⬆ 6	⬆ 1					100.0
205	EggCelentes	466	⬇ 35	⬇ 37	⬆ 1					100.0
206	Czech National Team	353	⬇ 53	⬇ 3	⬆ 1		10.6			81.1	5.1
207	Team Dominik Radler	351	⬇ 1	⬆ 4	⬆ 1		100.0
208	/r/counting	337	⬆ 19	⬆ 5	⬆ 1
209	KnightLight	315	⬆ 7	⬆ 5	⬆ 2					99.3
210	Yurunago	276	⬆ 27	⬆ 24	⬆ 20					100.0
211	www.Adamek.biz	265	⬆ 7	⬆ 5	⬆ 2	⬆ 1				100.0
212	Unteranger Primelurche	264	⬇ 8	⬆ 3		⬇ 1				100.0
213	Math Teachers of the World	259	⬆ 6	⬆ 5	⬆ 1				100.0
214	GIMPS Hams	253	⬆ 6	⬆ 5	⬆ 2			100.0
215	Team Bulgaria	249	⬇ 12	⬇ 10	⬇ 5						99.9
216	DividerHunt	221	⬆ 9	⬆ 7	⬆ 2		100.0
217	Manri Costa Rica	213	⬇ 39	⬇ 23	⬆ 2					100.0
218	yfinder	208	⬆ 5	⬆ 6	⬆ 2					100.0
219	30thousandwon	193	⬇ 6	⬆ 7	⬆ 3					100.0
220	miiro	140	⬆ 17	⬆ 14	⬆ 6		100.0
221	GIMPS.Peace	122	⬆ 9	⬆ 6	⬆ 2		44.7	55.3
222	TeamUbuntu	121	⬆ 7	⬆ 6	⬆ 2					100.0
223	TeamEc	49	⬇ 18	⬆ 6	⬆ 2						100.0
224	FourthFloorFourEyes	46	⬆ 8	⬆ 6	⬆ 3		100.0
225	PROMYS	23	⬆ 8	⬆ 6	⬆ 3						100.0
226	sannerud.com	10	⬆ 8	⬆ 6	⬆ 3						100.0