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 2026-04-06 12:01 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	841449452					0.3		0.1		99.7
2	Slovakia	770422691	⬆ 1				0.1	98.7	0.1		1.2
3	PrimeNet	337617276	⬇ 1	⬆ 1			0.1	97.4	0.3	0.4	1.9
4	POLAND	269933171		⬇ 1			0.4	98.2	0.2		1.2
5	-Too many Ones-	167726648					0.2	91.1			8.8
6	Ars Technica Team Prime Rib	101792480						99.0		0.9
7	unRAID	33442628						99.6	0.3
8	GIMPSChina	21971985					71.6	19.5	4.0	0.6	4.2
9	More Power!!!	14333006	⬆ 1				13.6	55.7	1.9	1.1	27.8
10	One Man Team	13941353	⬇ 1					99.5	0.5
11	GW's legions	12940569					0.1	0.8	32.6	1.2	65.4
12	Team-Deutschland	12688226		⬆ 1			3.0	25.1	0.4	0.1	71.3
13	UCM-curtisc	11809394		⬇ 1					99.3	0.7
14	szerverem.hu	8147614	⬆ 4	⬆ 1			5.2	38.7	45.9	4.6	5.6
15	TeamUK	7570821	⬇ 1	⬇ 1			43.0	4.0	18.1	1.3	33.4	0.1
16	Porta Kruse	6416107	⬆ 1				2.0	0.3			91.4	6.1
17	GPU to 72	4658487	⬇ 2				53.5	26.5	0.5	4.0	15.4
18	Numberphile	2801355	⬆ 1	⬆ 1	⬆ 1		26.1	43.4	22.9	6.6	0.7
19	SpongeBob SquarePants	2750457	⬇ 3	⬇ 1	⬇ 1			31.0	59.6	9.3	0.1
20	tsc	2465053	⬆ 1				83.4	5.1	1.4	0.3	9.8
21	UW Eau Claire	2132981	⬆ 41	⬆ 6	⬆ 1		86.7		9.8	3.4
22	UKRAINE	2118111		⬇ 1	⬇ 1		23.6	13.0	46.6	16.8
23	Wikipedia	2034820		⬇ 1			60.0	32.7	4.1	2.2	0.8
24	Dutch Power Cows	1649957	⬇ 4	⬇ 1			31.2	27.7	1.4	1.5	38.2
25	GIMPS.USA	1485158					9.0	0.5	4.7	1.6	84.1
26	GIMPS.Japan	1366348			⬆ 1		5.2		9.1	2.3	83.4
27	Swedes Of Primes	1364438	⬇ 3	⬇ 3	⬇ 1		0.5	81.6	15.2	2.7
28	GIMPS.Occitania	1210157	⬇ 1					4.4				95.6
29	GIMPS.Korea	836689	⬆ 7	⬆ 1			89.3	4.7	5.0	0.9	0.1
30	MBAi.Cloud	745861	⬆ 1	⬇ 1					99.9	0.1
31	MATHSareREAL	635547	⬇ 3	⬆ 1			95.8		3.0	1.2
32	MOXA	555895	⬇ 3	⬇ 1			99.0		0.7	0.3
33	citizenscience.ru	546782	⬇ 1	⬆ 2			88.6	3.7	3.5	0.8	2.9	0.5
34	Buhr	449795		⬆ 2	⬆ 1		57.3	3.7	19.2	5.8	14.0
35	Rechenkraft.net	442021	⬇ 5	⬇ 2	⬇ 1		4.3	55.9	3.7	5.4	30.0	0.6
36	Terry Kim Team	431886	⬇ 3	⬇ 2			97.2		1.8	0.6
37	S485122	308390						95.0		5.0
38	Smoke-it	265954	⬇ 3				90.5	7.1	1.8
39	Colorado School of Mines	238208	⬆ 34	⬆ 8			91.9		6.2	1.9
40	randomteam	208173	⬆ 3	⬆ 1							100.0
41	YahsTeam	205885	⬇ 2	⬇ 2	⬆ 1		89.4		8.8	1.8
42	GIMPS Team Philippines	204026	⬆ 3	⬆ 1	⬇ 1		68.4		4.9	1.6	22.7
43	NerdyGirls	202461	⬇ 1	⬇ 1				42.4	7.2	50.4
44	nranks	196848	⬆ 2	⬇ 4			36.6	0.6	3.6	0.4	58.7
45	Canada	190481	⬇ 5					2.8	65.6	31.1
46	Team Tartan	184582	⬇ 5		⬆ 1				76.7	23.3
47	404 - "Primes not Found"	170226	⬆ 20	⬇ 3	⬇ 1		87.8		12.2
48	OverclockerAustralia	149954	⬇ 1	⬆ 1			58.6		20.8	17.1
49	GIMPS China	130070	⬇ 11	⬇ 1			92.0		3.9	0.2	3.6
50	BitMEX Research	124986	⬇ 6						95.1	4.9
51	GIMPS.NZ	123203	⬇ 2	⬆ 1	⬆ 1		78.4		10.7	10.9
52	Unicamp	121656	⬆ 4	⬆ 1	⬆ 1		71.2	0.1	24.0	4.7
53	Team China	119636	⬇ 3	⬇ 2	⬇ 2				99.7	0.3
54	Argentina	117923	⬆ 181	⬆ 94	⬆ 11	⬆ 2	21.3		78.7
55	SASAKI	111031	⬇ 2	⬇ 1	⬇ 1	⬇ 1	100.0
56	GIMPS.France	108880	⬆ 10	⬆ 2	⬇ 1	⬇ 1	10.2	62.5	3.6	10.8	12.7
57	EgyptianPolymaths	101968	⬇ 2	⬇ 2	⬇ 1			42.3			51.4
58	Wisconsin	99808	⬇ 4	⬇ 1	⬇ 1		47.5		28.1	24.3
59	Cap'n Entropy's Cavalcade of Wonderment	96096	⬇ 11	⬇ 3	⬇ 1		74.3	5.8	17.7	2.1
60	NanJing Tech	94375	⬆ 60	⬆ 31			30.2		63.4	6.4
61	SHADO	88303	⬇ 3	⬇ 1	⬇ 2				65.8	16.4	10.4	1.9
62	UIUC	82511	⬆ 3	⬇ 1	⬇ 1				70.0	30.0
63	AMD Users	78443	⬆ 7	⬆ 1	⬇ 1		59.5	0.8	12.1	27.2	0.5
64	Net-Work	76391	⬇ 4	⬇ 2	⬇ 1		3.5	1.8			86.3
65	Eratosthenes Sieve	74524	⬇ 1	⬇ 2	⬇ 1		0.7		95.4	3.8
66	Esperanto	70242	⬇ 3	⬇ 1				24.9	8.9	66.1	0.2
67	Hungary	69294	⬇ 10	⬇ 8			0.5		2.4	1.8	94.9
68	IOTA	64824	⬆ 167	⬆ 11	⬆ 4	⬆ 2	95.3		2.6	2.1
69	Wile E. Coyote	64141	⬆ 10	⬆ 2		⬇ 1			77.2	1.7	21.1
70	AJ	63922	⬆ 6	⬇ 4	⬇ 2	⬇ 1			75.5	24.5
71	Team_Italia	59965	⬆ 1	⬇ 1	⬇ 1		2.7		70.5	20.5	2.1	3.5
72	ParadoxZ Commando	59537	⬇ 1	⬇ 3	⬇ 1				72.7	27.3
73	Team Israel	57896	⬇ 4	⬇ 6			97.3		1.4	1.4
74	S147127	57656	⬆ 1	⬆ 1			26.8		14.2	58.9
75	Brno University of Technology	54240	⬇ 14	⬇ 3	⬆ 1			19.0	65.1	15.9
76	GIMPS.NEO	53410	⬇ 8	⬇ 8	⬇ 1				76.9	23.1
77	ComputerraRU	53102	⬇ 3				19.4		71.7	8.9
78	Team Belgium	51802	⬇ 1	⬇ 5			1.1	8.0	36.1	15.7	39.2
79	LTT fans	44381	⬇ 20	⬇ 5			32.4		5.2	0.5	61.9
80	Team Viet Nam	42563	⬇ 2	⬇ 2			28.7		31.3	29.1	10.9
81	HardOCP	38033	⬆ 6	⬆ 1					75.3	24.7
82	Team H	36582	⬆ 1	⬇ 1	⬆ 2		11.7	0.3	87.5	0.5
83	Debian	36432	⬆ 6	⬆ 2	⬆ 2				98.5	1.5
84	Turku	36285	⬆ 51	⬆ 4	⬇ 2				100.0
85	huskers-gimps	34550	⬆ 5	⬆ 2	⬆ 1				72.9	27.1
86	Team Austria	34292	⬇ 5	⬇ 6	⬇ 3		94.4	0.6	5.0
87	Hermessz	32392	⬇ 2	⬇ 4			63.9		36.1
88	socal_prime	30453	⬇ 4	⬇ 2				1.0	69.1	29.8	0.1
89	MES-Team	29806	⬇ 9	⬇ 5			72.8	7.1		20.1
90	Small-Team-2000	28840	⬇ 4						10.9	89.1
91	ᕙ(⇀‸↼‶)ᕗ	27988	⬆ 24	⬆ 1			0.8		98.8	0.4
92	VIPR	27921	⬆ 25	⬆ 4			65.9		22.6	11.5
93	Channel 4	24037	⬆ 10	⬆ 1	⬆ 2				82.4	17.6
94	LimePrime	23482	⬇ 12	⬇ 5	⬇ 1			6.0	86.2	7.8
95	The Fellowship of Infinity	23404	⬆ 9		⬇ 1				99.5	0.5
96	Costa Rica	23392	⬇ 5	⬆ 1					72.9	26.7
97	MurrayInfoSys	20412	⬆ 13	⬆ 5					65.8	34.1
98	Team Retired	19622	⬇ 3						27.9	10.9
99	PrimitiveRootsCircle	19318	⬆ 1	⬆ 1			21.9		49.1	26.5	2.5
100	A Single Engineer	18069	⬇ 2	⬆ 1					72.9	27.1
101	SpartaAlumni	16824	⬇ 2	⬆ 3					69.4	30.6
102	Ozzie Prime	16170	⬇ 6	⬇ 3				4.2	43.6	15.1		37.1
103	Team Norway	14924	⬇ 9	⬆ 4	⬆ 1		80.6			5.1	14.2
104	Spain	14918	⬇ 12	⬆ 5	⬆ 1				62.8	37.2
105	GIMPS.Portugal	14450	⬆ 2	⬆ 5	⬆ 1		0.1	72.4		27.5
106	Quantus	14447	⬇ 9		⬆ 1		8.4		21.5	26.3		43.7
107	SETI.Germany	14419	⬆ 7	⬆ 4	⬆ 1			6.6	22.0	71.4
108	Nerdfighters for Mersenne Primes	14254	⬇ 3		⬇ 5				87.3	12.7
109	NUST	14223	⬆ 30	⬆ 4			16.4	74.6	5.9	3.0
110	Georgia Tech	13974	⬇ 59	⬇ 34	⬆ 2				100.0
111	Portland State University	13794	⬇ 18	⬇ 8	⬇ 1			32.3	52.2	15.5
112	Team Finland	13662	⬇ 60	⬇ 19	⬇ 1		1.0		97.0		2.0
113	moeses	12587	⬇ 4	⬆ 2	⬆ 2				99.1	0.9
114	Mensa	12178	⬆ 2	⬆ 4	⬇ 1				77.4	22.6
115	Aiblspitz	12140	⬆ 17	⬆ 15	⬆ 1		1.4	73.6	13.0	10.6	1.4
116	Team Slovenia	11901	⬇ 15	⬇ 4	⬇ 2				71.8	28.2
117	Com Systems (RU)	11603	⬆ 25	⬆ 10	⬆ 6	⬆ 1			67.2	32.8
118	MadPoo	11398	⬇ 30	⬇ 13	⬇ 1	⬇ 1		41.2		58.8
119	Politeknik Banting, Selangor	11308	⬇ 13	⬇ 2	⬇ 1		88.6		7.0	4.4
120	GIMPS.Taiwan	10858	⬇ 18	⬇ 6	⬇ 1				87.6	11.9	0.1
121	FREE ROBUX	10852	⬆ 71		⬇ 1				100.0
122	Royal Military College of Canada	10691	⬇ 3				89.7		7.9	2.4
123	Granada	10647	⬇ 15	⬇ 7	⬇ 2		32.2		14.7	52.4
124	Shaffer's Studio	9685	⬆ 3	⬆ 7	⬆ 5	⬆ 1			88.1	11.8
125	Server66	9509	⬆ 4	⬇ 1	⬇ 1	⬇ 1	100.0
126	RobotechResearch	9444	⬆ 55	⬆ 8					42.6	57.4
127	Syntony	9436	⬇ 3	⬇ 2	⬇ 2					100.0
128	JiBoTeam	9105	⬇ 3	⬆ 4	⬆ 2	⬆ 1				100.0
129	TurkishMath	9059	⬇ 3	⬆ 9	⬆ 3	⬇ 1			83.0	17.0
130	Hyperion	8658	⬇ 19	⬇ 10	⬆ 1					25.7
131	Die Zeitfinder	8483	⬇ 13	⬇ 2	⬇ 4				90.9	9.1
132	FreeBSD	8297	⬇ 11	⬇ 9	⬇ 4		0.6		76.0	23.5
133	MES22-Team	8136	⬇ 20	⬇ 7			100.0
134	Abacus	7920	⬇ 12	⬇ 15					98.9	1.1
135	Triangle	7837	⬇ 7	⬇ 2					99.1	0.9
136	Team Splunk	7605	⬇ 3					28.1	71.9
137	University of Waterloo	7461	⬆ 3						100.0
138	irowiki	6992	⬇ 7	⬇ 3						100.0
139	Brasil	6672	⬇ 5	⬆ 1	⬆ 1				81.9	18.0
140	Prime Rib	6538	⬇ 3	⬆ 1	⬆ 1				96.6	3.4
141	SU Prime Pirates	6437	⬇ 3	⬆ 1	⬆ 1				61.5	38.5
142	GIMPS Romania	6093	⬆ 3	⬆ 3	⬆ 1	⬆ 3	17.6		78.1	4.3
143	Team Christensen	5977	⬇ 2	⬆ 1	⬆ 1	⬇ 1				100.0
144	Elisabeth-von-Thadden-Schule	5757	⬇ 1	⬇ 1	⬆ 1	⬇ 1			40.3	59.7
145	youngfun429	5662	⬇ 33	⬇ 17	⬇ 6	⬇ 1			54.5	45.5
146	math.auth.gr	5646	⬆ 63	⬆ 39	⬆ 39	⬆ 12			90.8	9.2
147	Furry Primes	5237	⬇ 17	⬇ 8	⬇ 1	⬇ 1	78.4			21.6
148	teamMALI	5162	⬇ 4	⬆ 2	⬇ 1	⬇ 1			75.5	24.5
149	nmbarek_team	4953	⬇ 26		⬇ 1	⬇ 1			99.8	0.2
150	Hong Kong GIMP	4909	⬆ 3	⬆ 1	⬇ 1	⬇ 1			63.8	36.2
151	The_Dude_Abides	4879	⬇ 5	⬇ 4	⬇ 1	⬇ 1	36.6			54.5
152	Danpi for GIMPS	4710		⬆ 1	⬇ 1	⬇ 1	100.0
153	FactorMania	4310	⬆ 26	⬆ 4	⬆ 3	⬆ 3		54.1			45.8
154	zeit	4272	⬇ 5	⬇ 2	⬇ 1	⬇ 2	1.8			98.2
155	México mágico	4206	⬆ 16	⬆ 3	⬇ 1	⬇ 2			75.3	24.7
156	Crunching@EVGA	4104	⬆ 24	⬆ 4	⬇ 1	⬇ 2			99.7	0.3
157	Olympic College	4079	⬆ 1	⬇ 3	⬇ 5	⬇ 2				100.0
158	Noam Karni Team	3958	⬆ 12	⬆ 3	⬇ 1	⬇ 1			79.8	20.2
159	GIMPS.Hong Kong	3644	⬇ 2	⬆ 4			2.2		65.3	32.5
160	Korea.Prime	3637	⬆ 12	⬇ 1					64.6	35.4
161	Kabylie	3538	⬇ 5	⬇ 6	⬇ 3		16.0	4.6	44.0	35.4
162	Team_Brazil	2999	⬆ 2	⬆ 2	⬆ 1		83.1	0.2		16.7
163	WSU Cougars	2987	⬇ 27	⬇ 17	⬇ 2				51.4	48.5
164	3DCenter.org	2900	⬇ 14	⬇ 8	⬇ 2						100.0
165	Phi Kappa Theta	2820	⬇ 4		⬇ 1				56.0	44.0
166	I Love Canadian Natural Resources	2507	⬇ 6		⬇ 1					100.0
167	Pi Rho	2499	⬆ 68		⬇ 1				67.1	32.9
168	GIMPSMalaysia	2394	⬆ 20	⬆ 1	⬇ 1				66.8	33.2
169	VRS_SE	2360	⬇ 1	⬆ 1	⬇ 1				66.8	33.2
170	Saudi Primes	2268	⬇ 1	⬆ 2	⬇ 1					100.0
171	GIMPS_KS	2199	⬆ 35	⬆ 2	⬇ 1				36.5	62.0	1.4
172	Obsidian	2082	⬆ 4	⬆ 5	⬇ 1					100.0
173	Arpan Sen Labs	2058	⬆ 62	⬆ 28					20.5	79.5
174	TunisianTeam	2052	⬇ 15	⬇ 3	⬇ 2				37.7	62.3
175	Subprime Searches	2002	⬇ 9	⬇ 1	⬇ 1		87.2			12.8
176	The Prime Pioneers	1958	⬆ 13	⬇ 8	⬇ 1		1.2	98.8
177	The Pensis	1869	⬇ 3	⬇ 2	⬇ 1					100.0
178	GIMPS_IOM	1712	⬇ 1	⬆ 1		⬆ 1	100.0
179	F=dp/dt	1593	⬇ 4	⬇ 3	⬇ 2	⬇ 1			99.3	0.6
180	San Francisco	1586	⬆ 2	⬆ 1	⬇ 1				100.0
181	ANDY	1582	⬇ 27	⬇ 1	⬇ 1				98.8	1.2
182	cr_colorado	1549	⬆ 17		⬇ 1					100.0
183	International School of Beijing (ISB)	1544	⬇ 36	⬇ 21	⬇ 1				99.3	0.7
184	Zorin OS Crew	1470	⬇ 21	⬇ 6	⬇ 1				52.5	47.5
185	CZAsTc	1447	⬆ 48	⬇ 2	⬇ 1				99.6	0.4
186	Morocco	1334	⬆ 31	⬆ 4	⬆ 2					100.0
187	Czech National Team	1182	⬆ 15	⬆ 2	⬇ 1		3.2		70.1	24.2	1.5
188	Byberg Nordic Prime	1047	⬆ 7	⬆ 8	⬆ 8				74.6	25.4
189	His Dark Materials	1046	⬇ 16	⬇ 3	⬇ 2					41.7	58.2
190	Therian Primes	1007	⬆ 45	⬆ 1	⬇ 1			14.6		52.4	33.0
191	TimE4This	876	⬇ 7	⬇ 4	⬆ 1					100.0
192	Optimists Prime	860	⬇ 44	⬇ 8	⬇ 2			100.0
193	AWC	801	⬆ 42						100.0
194	GIMPS Asturias	794	⬇ 1			⬆ 1			99.6	0.4
195	Weatopians	793	⬇ 1			⬆ 1			99.7	0.3
196	YESHUA IS THE MESSIAH	792	⬆ 39	⬆ 30	⬆ 25	⬆ 1			100.0
197	alan145	778	⬇ 32	⬇ 9	⬇ 6	⬇ 3	99.4			0.6
198	hreid	776	⬇ 1	⬇ 1	⬇ 1				100.0
199	Join Us 😈	708	⬆ 11		⬇ 1		100.0
200	SGDynamo Dresden	580	⬆ 3		⬇ 1		100.0
201	PrimeObsession	539	⬆ 7	⬆ 1	⬇ 1					100.0
202	London Computation Club	478	⬆ 10	⬆ 1	⬇ 1					100.0
203	Team Dominik Radler	351	⬆ 10	⬆ 2	⬇ 1		100.0
204	/r/counting	337	⬆ 22	⬆ 2	⬇ 1
205	KnightLight	315	⬆ 10	⬆ 2	⬇ 1					99.3
206	Yurunago	276	⬆ 29	⬆ 2	⬇ 1					100.0
207	Vegan	275	⬆ 28	⬆ 19	⬆ 14	⬆ 15				100.0
208	www.Adamek.biz	265	⬆ 8	⬆ 1	⬇ 2	⬇ 1				100.0
209	Math Teachers of the World	259	⬆ 9	⬆ 1	⬇ 2	⬇ 1			100.0
210	GIMPS Hams	253	⬆ 9	⬆ 1	⬇ 2	⬇ 1		100.0
211	DividerHunt	221	⬆ 12	⬆ 1	⬇ 2	⬇ 1	100.0
212	Manri Costa Rica	213	⬇ 21	⬆ 1	⬇ 2	⬇ 1				100.0
213	30thousandwon	193	⬆ 12	⬆ 1	⬇ 2	⬇ 1				100.0
214	Team Bulgaria	165	⬇ 10	⬆ 1	⬇ 2	⬇ 1					99.9
215	miiro	150	⬆ 20	⬆ 1	⬇ 2	⬇ 1	100.0
216	GIMPS.Peace	122	⬆ 11	⬆ 1	⬇ 2	⬇ 1	44.7	55.3
217	TeamUbuntu	121	⬆ 11	⬆ 1	⬇ 2	⬇ 1				100.0
218	sannerud.com	108	⬆ 14	⬆ 1	⬇ 2	⬇ 1	43.1				19.4	37.5
219	PROMYS	23	⬆ 11	⬆ 2	⬇ 2	⬇ 1					100.0
220	PARG team	21	⬆ 15	⬆ 2	⬇ 2	⬇ 1					100.0
221	TeamEc	1	⬇ 14	⬆ 2	⬇ 2	⬇ 1					100.0
222	yfinder	1	⬆ 2	⬆ 3	⬇ 2	⬇ 1				100.0