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 2026-03-31 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	885919814					0.2		0.1		99.7
2	Slovakia	761321329	⬆ 1				0.1	98.6	0.1		1.2
3	PrimeNet	337606803	⬇ 1	⬆ 1				97.4	0.3	0.4	1.9
4	POLAND	269961325		⬇ 1			0.4	98.2	0.2		1.2
5	-Too many Ones-	185221638					0.2	91.9			7.9
6	Ars Technica Team Prime Rib	94959875						98.9		1.0
7	unRAID	33448192						99.6	0.3
8	GIMPSChina	22123876					72.2	19.2	4.0	0.6	4.0
9	More Power!!!	14319890	⬆ 1				13.7	55.6	1.9	1.0	27.8
10	One Man Team	13942885	⬇ 1					99.5	0.5
11	GW's legions	12850840					0.1	0.9	32.0	1.1	66.0
12	Team-Deutschland	12397650		⬆ 1			3.1	22.2	0.4	0.1	74.0
13	UCM-curtisc	11785680		⬇ 1					99.3	0.7
14	szerverem.hu	7611910	⬆ 17	⬆ 1	⬆ 1		5.6	38.7	44.8	4.9	6.0
15	TeamUK	7567902	⬇ 1	⬇ 1	⬇ 1		42.7	4.2	18.1	1.3	33.6	0.1
16	Porta Kruse	6418872	⬆ 1				2.0	0.3			91.4	6.1
17	GPU to 72	4669814	⬇ 2				54.0	26.2	0.5	3.9	15.1
18	SpongeBob SquarePants	2834393	⬇ 2					31.0	59.6	9.2	0.1
19	Numberphile	2826343	⬇ 1				26.7	42.9	22.8	6.6	0.7
20	tsc	2407062					83.1	5.2	1.4	0.3	10.0
21	UKRAINE	2065412			⬆ 1		24.8	13.6	44.0	17.4
22	UW Eau Claire	2064055	⬆ 43	⬆ 6	⬆ 1		87.4		9.3	3.3
23	Wikipedia	2032801	⬇ 1		⬇ 2		60.0	32.7	4.1	2.2	0.8
24	Dutch Power Cows	1718401	⬇ 5	⬇ 2			31.6	28.3	1.4	1.5	37.3
25	GIMPS.USA	1460526	⬇ 1				7.8	0.4	4.6	1.6	85.6
26	Swedes Of Primes	1390548	⬇ 3	⬇ 2			0.5	81.5	15.4	2.6
27	GIMPS.Japan	1367673	⬇ 2	⬇ 1			4.6	0.1	9.0	2.2	84.0
28	GIMPS.Occitania	1210157	⬇ 2	⬇ 1				4.4				95.6
29	GIMPS.Korea	801697	⬆ 8	⬆ 3			89.2	4.6	5.2	0.9	0.1
30	MBAi.Cloud	737987		⬇ 1					100.0
31	MATHSareREAL	636521	⬇ 4				95.7		3.1	1.2
32	MOXA	572917	⬇ 4	⬇ 2			99.0		0.7	0.3
33	citizenscience.ru	545756	⬇ 1	⬆ 2			88.5	3.7	3.5	0.8	2.9	0.5
34	Buhr	448983		⬆ 2	⬆ 1	⬆ 1	58.0	3.6	19.4	5.8	13.2
35	Rechenkraft.net	448299	⬇ 6	⬇ 2	⬇ 1	⬇ 1	4.9	56.3	3.5	5.4	29.4	0.6
36	Terry Kim Team	432812	⬇ 3	⬇ 2			97.2		1.8	0.6
37	S485122	308806	⬇ 1					95.0		5.0
38	Smoke-it	266057	⬇ 3				90.5	7.1	1.8
39	Colorado School of Mines	225525	⬆ 42	⬆ 9			91.6		6.4	2.0
40	randomteam	208173	⬆ 3	⬆ 3	⬆ 1						100.0
41	GIMPS Team Philippines	205934	⬆ 4	⬆ 1	⬆ 2		69.9		4.5	1.6	21.7
42	YahsTeam	204822	⬇ 4	⬇ 3	⬇ 2		89.2		8.8	2.0
43	NerdyGirls	203005	⬇ 1	⬇ 2	⬇ 1			42.2	7.2	50.6
44	nranks	196145	⬆ 2	⬇ 4	⬆ 1		36.4	0.6	3.6	0.4	59.0
45	Canada	192219	⬇ 6	⬇ 1	⬆ 1			2.8	65.4	31.0
46	404 - "Primes not Found"	190580	⬆ 22	⬇ 1	⬇ 2		78.1		21.9
47	Team Tartan	186926	⬇ 6	⬇ 1					76.5	23.5
48	OverclockerAustralia	149451	⬇ 1	⬆ 2			58.8		20.9	16.8
49	GIMPS China	131136	⬇ 9	⬇ 2			92.0		3.9	0.2	3.6
50	BitMEX Research	128059	⬇ 6	⬇ 1					95.2	4.8
51	Team China	122736	⬆ 1						99.7	0.3
52	GIMPS.NZ	121116	⬇ 1				78.7		10.2	11.0
53	Unicamp	119694	⬆ 3				72.1	0.1	23.0	4.8
54	SASAKI	111376					100.0
55	GIMPS.France	106541	⬆ 11	⬆ 3	⬆ 1		10.5	60.8	3.7	11.8	13.0
56	EgyptianPolymaths	106325	⬇ 1	⬇ 1	⬇ 1			40.6			54.0
57	Wisconsin	101879	⬇ 4				47.8		27.6	24.6
58	Cap'n Entropy's Cavalcade of Wonderment	97659	⬇ 9	⬇ 2			74.6	5.8	17.4	2.1
59	SHADO	90750	⬇ 1	⬆ 1					66.5	16.3	10.1	1.9
60	NanJing Tech	85464	⬆ 91	⬆ 35	⬆ 6		33.4		59.9	6.7
61	UIUC	82401	⬆ 3		⬇ 1				70.0	30.0
62	AMD Users	76566	⬆ 10	⬆ 3	⬆ 1		60.9	0.8	12.4	25.4	0.5
63	Net-Work	76301	⬇ 2	⬇ 1	⬇ 2		3.3	1.8			86.4
64	Argentina	76036	⬆ 168	⬆ 163	⬆ 10	⬆ 1			100.0
65	Eratosthenes Sieve	74898	⬇ 2	⬇ 2	⬇ 3	⬇ 1	0.7		95.4	3.8
66	Esperanto	69953	⬇ 4	⬇ 2	⬇ 2			25.0	8.9	65.9	0.2
67	Hungary	68919	⬇ 10	⬇ 8	⬇ 2		0.5		1.8	1.8	95.5
68	AJ	64179	⬆ 6	⬆ 1	⬇ 1				76.4	23.6
69	Wile E. Coyote	63114	⬆ 11	⬆ 5	⬇ 1				77.8	2.1	20.0
70	Team_Italia	59391	⬆ 1	⬆ 1	⬇ 1		2.7		69.8	21.1	2.1	3.5
71	IOTA	58300	⬆ 161	⬆ 17	⬆ 2	⬆ 1	94.8		2.9	2.3
72	ParadoxZ Commando	58241	⬇ 2	⬇ 2	⬇ 2	⬇ 1			73.0	27.0
73	Team Israel	57622	⬇ 4	⬇ 5	⬇ 2		97.3		1.4	1.4
74	S147127	55742	⬆ 2	⬆ 1	⬆ 1		27.0		11.9	61.2
75	GIMPS.NEO	54403	⬇ 8	⬇ 8	⬇ 3				76.9	23.1
76	Brno University of Technology	53985	⬇ 16	⬇ 4				19.1	65.4	15.5
77	ComputerraRU	51913	⬇ 4		⬆ 1		19.8		71.1	9.1
78	Team Belgium	51161	⬇ 3	⬇ 5	⬇ 1		1.1	8.1	34.9	15.4	40.6
79	LTT fans	44381	⬇ 20	⬇ 3			32.4		5.2	0.5	61.9
80	Team Viet Nam	43404	⬇ 2	⬇ 2			28.1		30.7	30.5	10.7
81	HardOCP	37790	⬆ 6	⬆ 4	⬆ 2				75.8	24.2
82	Turku	36285	⬆ 47	⬆ 9	⬇ 1				100.0
83	Team H	36204	⬆ 1	⬇ 2	⬆ 1	⬆ 1	11.7	0.4	87.3	0.5
84	Team Austria	36016	⬇ 5	⬇ 5	⬇ 2	⬇ 1	94.7	0.6	4.7
85	Debian	35649	⬆ 4	⬇ 2					98.4	1.6
86	huskers-gimps	35314	⬆ 4	⬇ 2					73.5	26.5
87	Hermessz	31442	⬇ 1	⬇ 1			65.3		34.7
88	socal_prime	30885	⬇ 3	⬆ 1	⬆ 1			1.0	68.1	30.7	0.1
89	MES-Team	30646	⬇ 12	⬇ 7	⬇ 1		71.8	7.3		20.9
90	Small-Team-2000	28840	⬇ 2						10.9	89.1
91	ᕙ(⇀‸↼‶)ᕗ	27985	⬆ 24	⬆ 2			0.8		98.8	0.4
92	VIPR	26161	⬆ 26	⬆ 7	⬆ 1		63.6		24.1	12.3
93	LimePrime	23486	⬇ 11	⬇ 6	⬇ 1			6.0	86.2	7.8
94	The Fellowship of Infinity	23401	⬆ 12	⬆ 2					99.6	0.4
95	Costa Rica	22547	⬇ 4	⬇ 3	⬆ 1	⬆ 1			71.9	27.7
96	Channel 4	22411	⬆ 8	⬇ 2	⬇ 1	⬇ 1			81.1	18.9
97	MurrayInfoSys	20157	⬆ 13	⬆ 4					66.7	33.3
98	Team Retired	19752	⬇ 3	⬇ 1					27.7	10.8
99	PrimitiveRootsCircle	19165	⬆ 2	⬇ 1	⬆ 2		22.6		49.5	25.3	2.5
100	A Single Engineer	18836		⬆ 2					74.0	26.0
101	SpartaAlumni	17596	⬇ 2	⬆ 2	⬆ 1				70.7	29.3
102	Ozzie Prime	16207	⬇ 4	⬆ 3	⬆ 1			4.4	43.5	15.1		37.0
103	Nerdfighters for Mersenne Primes	15020	⬆ 2	⬆ 5	⬆ 2				88.0	12.0
104	Team Norway	14961	⬇ 10	⬆ 3			80.4			5.1	14.4
105	Spain	14918	⬇ 13	⬆ 4	⬆ 3				62.8	37.2
106	GIMPS.Portugal	14450	⬆ 1	⬆ 4	⬆ 3		0.1	72.4		27.5
107	Quantus	14447	⬇ 11	⬇ 1	⬇ 1		8.4		21.5	26.3		43.7
108	SETI.Germany	14419	⬆ 6	⬆ 3	⬆ 2			6.6	22.0	71.4
109	NUST	14223	⬆ 41	⬆ 7	⬆ 2		16.4	74.6	5.9	3.0
110	Portland State University	13857	⬇ 17	⬇ 10	⬇ 3			32.6	51.9	15.4
111	Team Finland	13653	⬇ 61	⬇ 31	⬆ 1		0.9		97.1		2.0
112	Georgia Tech	13190	⬇ 64	⬇ 46	⬇ 13				100.0
113	Mensa	12705	⬆ 6	⬆ 4	⬆ 1				74.2	25.8
114	Team Slovenia	11901	⬇ 17	⬇ 2	⬆ 2				71.8	28.2
115	moeses	11803	⬇ 6	⬇ 2					99.0	1.0
116	Aiblspitz	11532	⬆ 16	⬆ 17	⬆ 5		1.4	72.2	13.7	11.2	1.4
117	MadPoo	11398	⬇ 34	⬇ 13	⬇ 4			41.2		58.8
118	Politeknik Banting, Selangor	11308	⬇ 16	⬇ 3			88.6		7.0	4.4
119	GIMPS.Taiwan	11100	⬇ 16	⬇ 5	⬇ 2				85.7	13.8	0.1
120	FREE ROBUX	10852	⬆ 112	⬆ 1					100.0
121	Granada	10739	⬇ 13	⬇ 3	⬇ 2		32.7		14.6	52.0
122	Royal Military College of Canada	10691	⬇ 2				89.7		7.9	2.4
123	Com Systems (RU)	10562	⬆ 24	⬆ 6					66.4	33.6
124	Server66	9937	⬆ 4	⬆ 2			100.0
125	Shaffer's Studio	9695	⬆ 1		⬆ 4	⬆ 4			88.0	11.9
126	Syntony	9649	⬇ 2	⬆ 1	⬇ 1	⬇ 1				100.0
127	RobotechResearch	9443	⬆ 53	⬆ 8	⬇ 1	⬇ 1			42.6	57.4
128	Die Zeitfinder	9249	⬇ 12	⬆ 2		⬇ 1			91.6	8.4
129	FreeBSD	9072	⬇ 12	⬇ 6	⬆ 3	⬇ 1	0.5		78.0	21.5
130	JiBoTeam	8829	⬇ 5	⬆ 1	⬆ 1					100.0
131	TurkishMath	8642	⬇ 8	⬆ 5	⬆ 2	⬆ 1			82.1	17.9
132	Hyperion	8621	⬇ 21	⬇ 13	⬇ 5	⬇ 1				25.8
133	MES22-Team	8136	⬇ 20	⬇ 9	⬆ 3		100.0
134	Abacus	8133	⬇ 13	⬇ 14	⬆ 1				96.3	3.7
135	Triangle	8088	⬇ 8	⬇ 3	⬇ 5				96.0	4.0
136	Team Splunk	7605	⬇ 3	⬆ 2	⬆ 1			28.1	71.9
137	University of Waterloo	7461	⬆ 1	⬆ 2	⬆ 1				100.0
138	irowiki	7202	⬇ 8	⬇ 1	⬆ 1					100.0
139	Brasil	6665	⬇ 5	⬆ 1	⬆ 1	⬆ 1			82.0	17.9
140	Prime Rib	6541		⬆ 1	⬆ 1	⬆ 1			96.6	3.4
141	SU Prime Pirates	6437	⬇ 5	⬆ 1	⬆ 1	⬆ 1			61.5	38.5
142	youngfun429	6098	⬇ 30	⬇ 14	⬇ 8	⬇ 3			50.6	49.4
143	Team Christensen	5977	⬇ 4			⬆ 1				100.0
144	Elisabeth-von-Thadden-Schule	5757	⬇ 3		⬆ 1	⬆ 1			40.3	59.7
145	Furry Primes	5405	⬇ 14	⬇ 11	⬆ 1	⬆ 1	79.0			21.0
146	teamMALI	5165	⬇ 4	⬆ 3	⬆ 1	⬆ 1			75.5	24.5
147	nmbarek_team	4954	⬇ 25	⬆ 1	⬆ 3	⬆ 1			99.8	0.2
148	Hong Kong GIMP	4912	⬆ 7	⬆ 2	⬆ 3	⬆ 1			63.7	36.3
149	The_Dude_Abides	4886	⬇ 6	⬇ 2		⬆ 1	36.9			54.4
150	Danpi for GIMPS	4710	⬆ 2	⬆ 2	⬆ 2	⬆ 1	100.0
151	GIMPS Romania	4398	⬇ 7	⬇ 6	⬇ 7	⬇ 8	4.8		89.3	5.9
152	Olympic College	4331	⬆ 5	⬆ 1	⬆ 1					100.0
153	zeit	4288	⬇ 5	⬇ 2	⬆ 1		2.1			97.9
154	México mágico	4206	⬆ 33	⬆ 5	⬆ 1				75.3	24.7
155	Crunching@EVGA	4104	⬆ 24	⬆ 2	⬆ 1				99.7	0.3
156	FactorMania	4019	⬆ 27		⬆ 1			58.1			41.9
157	Noam Karni Team	3952	⬆ 15	⬆ 1	⬆ 1				80.0	20.0
158	Kabylie	3786	⬇ 2	⬇ 4	⬆ 1		14.9	4.3	41.1	39.7
159	GIMPS.Hong Kong	3644	⬇ 1	⬆ 3	⬆ 5		2.2		65.3	32.5
160	Korea.Prime	3637	⬆ 14						64.6	35.4
161	WSU Cougars	3221	⬇ 26	⬇ 15	⬇ 13				47.7	52.2
162	3DCenter.org	3038	⬇ 13	⬇ 7	⬇ 1						100.0
163	Team_Brazil	2999	⬆ 2		⬇ 1		83.1	0.2		16.7
164	Phi Kappa Theta	2820	⬇ 3		⬇ 1				56.0	44.0
165	I Love Canadian Natural Resources	2507	⬇ 5							100.0
166	Pi Rho	2499	⬆ 66						67.1	32.9
167	GIMPSMalaysia	2394	⬆ 21	⬆ 1					66.8	33.2
168	VRS_SE	2360	⬆ 1	⬆ 1					66.8	33.2
169	Saudi Primes	2268	⬇ 3	⬆ 2	⬆ 1					100.0
170	GIMPS_KS	2199	⬆ 34	⬆ 2	⬆ 1				36.5	62.0	1.4
171	Obsidian	2082	⬆ 6	⬆ 5	⬆ 1					100.0
172	TunisianTeam	2052	⬇ 13	⬇ 2	⬆ 1				37.7	62.3
173	Arpan Sen Labs	2050	⬆ 59	⬆ 36	⬆ 1				20.6	79.4
174	Subprime Searches	2002	⬇ 7	⬇ 1	⬆ 2		87.2			12.8
175	The Prime Pioneers	1986	⬆ 14	⬇ 8			1.2	98.8
176	The Pensis	1869	⬇ 1	⬇ 2	⬆ 1					100.0
177	F=dp/dt	1845	⬇ 1	⬇ 2	⬆ 1				85.8	14.2
178	GIMPS_IOM	1712		⬆ 1	⬆ 1		100.0
179	San Francisco	1586	⬆ 2	⬆ 2	⬆ 1				100.0
180	ANDY	1582	⬇ 27		⬆ 1				98.8	1.2
181	cr_colorado	1549	⬆ 51	⬆ 2	⬆ 1					100.0
182	International School of Beijing (ISB)	1544	⬇ 45	⬇ 21	⬇ 13				99.3	0.7
183	Zorin OS Crew	1470	⬇ 20	⬇ 5					52.5	47.5
184	CZAsTc	1447	⬆ 47						99.6	0.4
185	math.auth.gr	1355	⬆ 23						61.7	38.3
186	Czech National Team	1182	⬆ 14	⬆ 18	⬆ 1		3.2		70.1	24.2	1.5
187	His Dark Materials	1066	⬇ 16	⬇ 5	⬇ 1					40.9	59.0
188	Morocco	1066	⬆ 44							100.0
189	Therian Primes	1007	⬆ 43	⬆ 9	⬆ 1			14.6		52.4	33.0
190	Optimists Prime	991	⬇ 44	⬇ 13	⬇ 1			100.0
191	TimE4This	876	⬇ 9	⬇ 5	⬆ 1	⬆ 1				100.0
192	alan145	845	⬇ 28	⬇ 5	⬇ 1	⬇ 1	99.5			0.5
193	AWC	801	⬆ 39	⬇ 3					100.0
194	GIMPS Asturias	794	⬇ 2	⬇ 3					99.6	0.4
195	Weatopians	793	⬇ 2	⬇ 3					99.7	0.3
196	Sæve Nordic Prime	781	⬇ 2	⬇ 3					100.0
197	hreid	776	⬇ 1	⬇ 3					100.0
198	Join Us 😈	708	⬆ 11	⬆ 2	⬆ 1		100.0
199	SGDynamo Dresden	580	⬆ 2	⬆ 2	⬆ 1		100.0
200	PrimeObsession	539	⬆ 6	⬆ 2	⬆ 1					100.0
201	London Computation Club	478	⬆ 11	⬆ 2	⬆ 1					100.0
202	Team Dominik Radler	351	⬆ 5	⬆ 3	⬆ 1		100.0
203	/r/counting	337	⬆ 20	⬆ 3	⬆ 1
204	KnightLight	315	⬆ 10	⬆ 3	⬆ 1					99.3
205	Yurunago	276	⬆ 27	⬆ 3	⬆ 1					100.0
206	www.Adamek.biz	265	⬆ 9	⬆ 4	⬆ 1					100.0
207	Math Teachers of the World	259	⬆ 9	⬆ 5	⬆ 1				100.0
208	GIMPS Hams	253	⬆ 9	⬆ 5	⬆ 1			100.0
209	DividerHunt	221	⬆ 11	⬆ 5	⬆ 1		100.0
210	Manri Costa Rica	213	⬇ 19	⬆ 5	⬆ 2					100.0
211	30thousandwon	193	⬆ 11	⬆ 6	⬆ 2					100.0
212	Team Bulgaria	165	⬇ 10	⬆ 6	⬆ 2						99.9
213	miiro	150	⬆ 19	⬆ 6	⬆ 2		100.0
214	GIMPS.Peace	122	⬆ 11	⬆ 6	⬆ 2		44.7	55.3
215	TeamUbuntu	121	⬆ 9	⬆ 6	⬆ 2					100.0
216	sannerud.com	108	⬆ 13	⬆ 6	⬆ 2		43.1				19.4	37.5
217	PROMYS	23	⬆ 10	⬆ 8	⬆ 3						100.0
218	PARG team	21	⬆ 14	⬆ 9	⬆ 3						100.0
219	TeamEc	1	⬇ 14	⬆ 5	⬆ 4						100.0
220	yfinder	1	⬆ 1	⬆ 6	⬆ 4					100.0