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 2026-03-20 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	894196578					0.3		0.1		99.7
2	Slovakia	766058330	⬆ 1				0.1	97.8	0.1		2.0
3	PrimeNet	337619108	⬇ 1		⬆ 1			97.4	0.3	0.4	1.9
4	POLAND	325531628			⬇ 1		0.3	98.6	0.2		0.9
5	-Too many Ones-	188561997					0.2	92.1			7.7
6	Ars Technica Team Prime Rib	82405927						98.8		1.1
7	unRAID	33452967						99.6	0.3
8	GIMPSChina	22427348					73.3	18.3	4.0	0.6	3.7
9	More Power!!!	14613634	⬆ 1	⬆ 1			13.5	56.5	1.9	0.9	27.2
10	One Man Team	13945199	⬇ 1	⬇ 1				99.4	0.6
11	GW's legions	12817014					0.1	0.9	31.4	1.0	66.6
12	UCM-curtisc	11825893	⬆ 1						99.3	0.7
13	Team-Deutschland	11621948	⬇ 1				3.5	16.7	0.4	0.1	79.2
14	TeamUK	7530181					41.9	4.6	18.1	1.3	33.9	0.1
15	szerverem.hu	7477328	⬆ 220				5.7	37.8	45.4	5.0	6.1
16	Porta Kruse	6423770	⬆ 7				2.0	0.3			91.5	6.1
17	GPU to 72	4634286	⬇ 2				54.7	25.8	0.5	3.9	14.9
18	SpongeBob SquarePants	3016898	⬇ 2					31.0	59.6	9.2	0.3
19	Numberphile	2864199	⬇ 1				27.5	42.1	22.6	6.7	0.8
20	tsc	2312452	⬇ 1				90.0	5.7	1.6	0.3	2.4
21	UKRAINE	2041096	⬇ 1				26.3	14.4	43.2	16.0
22	Wikipedia	2025660	⬇ 1	⬆ 1			59.9	32.9	4.0	2.2	0.8
23	Dutch Power Cows	1809462	⬇ 6	⬇ 1			32.2	28.3	1.4	1.4	36.7
24	UW Eau Claire	1715647	⬆ 50	⬆ 6			86.2		10.1	3.7
25	Swedes Of Primes	1426912	⬇ 3	⬇ 1			0.5	81.9	15.1	2.6
26	GIMPS.USA	1418554	⬇ 2	⬇ 1			6.0	0.3	4.3	1.4	87.9
27	GIMPS.Japan	1360210	⬇ 2	⬇ 1			4.4	0.1	8.8	2.2	84.5
28	GIMPS.Occitania	1302492	⬇ 2	⬇ 1				4.1				95.9
29	GIMPS.Korea	747625	⬆ 7	⬆ 3	⬆ 1		88.9	4.5	5.7	0.8	0.1
30	MBAi.Cloud	720150		⬆ 1	⬇ 1				100.0
31	MATHSareREAL	638532	⬇ 4	⬇ 2			95.6		3.2	1.2
32	MOXA	613965	⬇ 4	⬇ 4			99.0		0.6	0.4
33	citizenscience.ru	489856	⬇ 2	⬆ 2			86.5	4.9	3.9	0.9	3.3	0.6
34	Rechenkraft.net	457262	⬇ 5	⬇ 1			4.8	57.7	3.2	5.5	28.3	0.6
35	Buhr	444585	⬇ 2	⬆ 1	⬆ 1	⬆ 1	59.7	3.4	19.2	5.8	11.9
36	Terry Kim Team	442872	⬇ 4	⬇ 2	⬇ 1	⬇ 1	97.5		1.6	0.6
37	S485122	309584	⬇ 2					95.0		5.0
38	Smoke-it	266570	⬇ 4				90.5	7.1	1.8
39	YahsTeam	212517	⬇ 1				88.6		9.5	1.9
40	randomteam	208173	⬆ 2	⬆ 4							100.0
41	NerdyGirls	206139	⬆ 2	⬆ 1				41.6	7.5	50.9
42	GIMPS Team Philippines	204478	⬆ 4	⬇ 1			72.5		3.7	1.6	20.3
43	Colorado School of Mines	202045	⬆ 55	⬆ 7	⬆ 4	⬆ 1	90.8		7.0	2.2
44	404 - "Primes not Found"	202016	⬆ 25	⬆ 3	⬇ 1	⬇ 1	79.4		20.6
45	Canada	196609	⬇ 6	⬇ 2	⬇ 1	⬆ 1		2.9	65.4	30.6
46	nranks	196399	⬇ 2	⬇ 6	⬇ 1	⬇ 1	36.1	0.6	4.0	0.4	58.9
47	Team Tartan	190518	⬇ 7	⬇ 2	⬇ 1				76.6	23.4
48	OverclockerAustralia	148698	⬇ 1	⬆ 1			59.1		21.0	16.4
49	GIMPS China	142723	⬇ 12	⬇ 3			92.6		3.6	0.2	3.3
50	BitMEX Research	135726	⬇ 9	⬇ 2					95.5	4.5
51	Team China	123421							99.7	0.3
52	GIMPS.NZ	121930	⬇ 2				78.7		10.2	11.1
53	Unicamp	119119	⬆ 3	⬆ 1			71.8	0.3	23.2	4.8
54	SASAKI	111641	⬇ 1	⬇ 1			100.0
55	EgyptianPolymaths	108438	⬇ 1					38.8			56.1
56	Wisconsin	104357	⬇ 4	⬆ 1			48.9		26.9	24.2
57	GIMPS.France	101850	⬆ 9	⬆ 2	⬆ 1	⬆ 1	11.0	57.6	3.9	13.8	13.6
58	Cap'n Entropy's Cavalcade of Wonderment	101001	⬇ 9	⬇ 2	⬇ 1	⬇ 1	75.3	5.6	16.8	2.3
59	SHADO	89688	⬇ 2	⬆ 2					66.3	16.2	10.3	1.9
60	UIUC	80577	⬆ 4	⬆ 3	⬆ 1				70.6	29.4
61	Net-Work	75987		⬆ 1	⬆ 1	⬆ 1	3.1	1.8			86.3
62	Eratosthenes Sieve	75602	⬆ 1	⬆ 2	⬆ 1	⬆ 1	0.7		96.5	2.8
63	Hungary	74758	⬇ 8	⬇ 5	⬇ 3	⬇ 2	0.6		2.5	3.0	93.6
64	AMD Users	74026	⬆ 8	⬆ 2			63.0	0.8	12.8	22.8	0.5
65	Esperanto	70424	⬇ 3					24.9	11.1	63.9	0.2
66	AJ	63178	⬆ 11	⬆ 6					75.7	24.3
67	Wile E. Coyote	60635	⬆ 13	⬆ 10	⬆ 4	⬆ 1			78.1	2.6	19.2
68	ParadoxZ Commando	59782	⬆ 3	⬆ 3	⬇ 1	⬇ 1			73.0	27.0
69	Team_Italia	58685	⬆ 1	⬆ 4			2.7		69.3	21.3	2.1	3.8
70	Team Israel	58227	⬇ 3	⬇ 3			97.3		1.4	1.3
71	GIMPS.NEO	57701	⬇ 6	⬇ 3	⬇ 3				76.6	23.4
72	S147127	54869	⬆ 4	⬆ 4			25.7		12.0	62.2
73	IOTA	54454	⬆ 162	⬆ 17	⬆ 4	⬆ 1	94.4		3.1	2.5
74	Brno University of Technology	53687	⬇ 16		⬇ 1	⬇ 1		20.2	64.3	15.5
75	NanJing Tech	53267	⬆ 160	⬆ 23	⬆ 6	⬆ 3	16.7		72.6	10.8
76	Team Belgium	51877	⬇ 3	⬇ 1	⬇ 2	⬇ 1	1.1	8.0	34.4	14.7	41.8
77	ComputerraRU	50814	⬇ 9	⬆ 1	⬇ 1	⬇ 1	15.1		75.6	9.3
78	LTT fans	48172	⬇ 18	⬇ 9	⬇ 3	⬇ 1	35.7		6.4	0.9	57.1
79	Argentina	46158	⬆ 156	⬆ 151	⬆ 13	⬆ 1			100.0
80	Team Viet Nam	43404	⬇ 2	⬇ 1	⬇ 2	⬇ 1	28.1		30.7	30.5	10.7
81	Team Austria	38716	⬇ 2	⬇ 1	⬇ 1		95.0	0.5	4.4
82	Turku	37051	⬆ 43	⬆ 10	⬆ 1				100.0
83	Team H	35649	⬇ 1	⬇ 1	⬇ 1		11.5	0.6	87.4	0.5
84	Debian	34847	⬆ 3	⬆ 4	⬆ 2	⬆ 2			98.4	1.6
85	HardOCP	34670		⬆ 1	⬇ 1	⬇ 1			77.9	22.1
86	huskers-gimps	34551	⬆ 2	⬆ 1	⬆ 1	⬇ 1			75.1	24.9
87	Hermessz	32995	⬇ 3	⬇ 3	⬇ 2		64.6		35.4
88	MES-Team	31375	⬇ 13	⬇ 5			71.8	7.7		20.4
89	socal_prime	30809	⬇ 6	⬇ 4				1.0	65.7	33.1	0.1
90	Small-Team-2000	29205	⬇ 4	⬇ 1	⬆ 1	⬆ 1			10.7	89.3
91	Georgia Tech	28243	⬇ 46	⬇ 31	⬇ 12	⬇ 1	65.0		35.0
92	LimePrime	27342	⬇ 11	⬇ 11	⬇ 2			5.2	88.1	6.7
93	ᕙ(⇀‸↼‶)ᕗ	26411	⬆ 23				0.8		98.8	0.4
94	VIPR	23952	⬆ 23	⬆ 12	⬆ 1		59.2		26.3	14.5
95	Channel 4	23250	⬆ 10	⬇ 1	⬇ 1				81.8	18.2
96	The Fellowship of Infinity	22617	⬆ 13						99.5	0.5
97	Costa Rica	21191	⬇ 8	⬇ 6					72.5	27.1
98	MurrayInfoSys	20147	⬆ 14	⬆ 4	⬆ 4	⬆ 1			66.7	33.3
99	Team Retired	19942	⬇ 4	⬇ 4		⬇ 1			27.5	10.6
100	A Single Engineer	18818	⬆ 1	⬇ 1	⬆ 3				74.0	26.0
101	PrimitiveRootsCircle	18745	⬆ 1	⬇ 4			26.5		46.4	24.6	2.6
102	Portland State University	17921	⬇ 11	⬆ 2	⬆ 2		22.7	25.2	40.2	11.9
103	SpartaAlumni	17597	⬇ 10	⬇ 3	⬆ 2				70.7	29.3
104	Ozzie Prime	16311	⬇ 5	⬆ 4	⬇ 4			5.0	43.2	15.0		36.8
105	Team Norway	16044	⬇ 9		⬆ 1		81.3			4.8	13.8
106	Quantus	15647	⬇ 14	⬇ 5	⬆ 1		7.8		24.8	27.1		40.4
107	Nerdfighters for Mersenne Primes	15019	⬇ 4		⬆ 1	⬆ 1			88.0	12.0
108	MadPoo	14795	⬇ 49	⬇ 5	⬆ 1	⬇ 1		31.8		68.2
109	Spain	14667	⬇ 19	⬆ 1	⬆ 1				63.9	36.1
110	GIMPS.Portugal	14450	⬇ 3	⬇ 1	⬆ 1		0.1	72.4		27.5
111	SETI.Germany	14419	⬆ 2		⬆ 1			6.6	22.0	71.4
112	NUST	13778	⬆ 50	⬆ 5	⬆ 1		13.8	77.0	6.1	3.1
113	Team Finland	13653	⬇ 65	⬇ 43	⬇ 15		0.9		97.1		2.0
114	moeses	13354	⬇ 3	⬇ 1	⬆ 2				99.1	0.8
115	Mensa	12705	⬆ 3	⬆ 4	⬆ 3				74.2	25.8
116	Team Slovenia	12617	⬇ 22	⬇ 4	⬇ 2				73.8	26.2
117	GIMPS.Taiwan	11883	⬇ 17	⬇ 3	⬇ 2				86.6	12.9	0.1
118	Politeknik Banting, Selangor	11520	⬇ 21	⬇ 3	⬆ 1		87.0		6.9	6.1
119	Granada	11191	⬇ 11	⬇ 1	⬇ 2		33.2		14.0	52.2
120	FREE ROBUX	10852	⬆ 115	⬆ 1	⬆ 1				100.0
121	Royal Military College of Canada	10691	⬇ 2	⬆ 1	⬆ 2		89.7		7.9	2.4
122	Com Systems (RU)	10560	⬆ 26	⬆ 10	⬆ 7				66.4	33.6
123	Aiblspitz	10242	⬆ 10	⬆ 10	⬆ 3		1.6	68.7	15.4	12.6	1.6
124	FreeBSD	10084	⬇ 10	⬆ 1			0.5		82.7	16.8
125	Server66	9937	⬆ 4	⬆ 6			100.0
126	Hyperion	9850	⬇ 16	⬇ 10	⬇ 4				2.6	27.9
127	Syntony	9822	⬇ 1		⬆ 1	⬆ 1				100.0
128	RobotechResearch	9180	⬆ 49	⬆ 10	⬆ 2	⬆ 1			43.9	56.1
129	Shaffer's Studio	8915	⬇ 6		⬆ 2	⬆ 1			86.9	12.9
130	Triangle	8849	⬇ 6		⬆ 2	⬆ 1			96.4	3.6
131	JiBoTeam	8829	⬇ 4	⬇ 3	⬆ 4	⬆ 1				100.0
132	youngfun429	8655	⬇ 26	⬇ 6	⬆ 1	⬆ 1			62.6	37.4
133	Die Zeitfinder	8474	⬇ 18	⬇ 9	⬆ 1	⬆ 1			100.0
134	Abacus	8396	⬇ 14	⬇ 14	⬇ 14	⬆ 1			93.3	6.7
135	MES22-Team	8136	⬇ 31	⬇ 12	⬇ 8	⬇ 8	100.0
136	TurkishMath	7800	⬇ 15	⬇ 1					80.2	19.8
137	irowiki	7619	⬇ 7	⬇ 1						100.0
138	Team Splunk	7605	⬇ 6	⬇ 1				28.1	71.9
139	University of Waterloo	7044	⬇ 5						100.0
140	Furry Primes	6731	⬇ 9	⬇ 6			67.1		16.0	16.8
141	Brasil	6652	⬇ 13	⬆ 3					82.2	17.8
142	Prime Rib	6537	⬇ 6	⬇ 2					96.6	3.4
143	SU Prime Pirates	6437	⬇ 6	⬇ 2					61.5	38.5
144	Team Christensen	5938	⬇ 3	⬆ 2						100.0
145	GIMPS Romania	5815		⬇ 3					95.5	4.5
146	Elisabeth-von-Thadden-Schule	5757	⬇ 4	⬇ 1					40.3	59.7
147	The_Dude_Abides	5087	⬇ 7				37.2			52.3
148	WSU Cougars	5052	⬇ 13	⬇ 5					61.4	38.5
149	nmbarek_team	4954	⬇ 27	⬇ 1					99.8	0.2
150	teamMALI	4911	⬇ 7	⬆ 1					79.4	20.6
151	Hong Kong GIMP	4900	⬆ 1	⬇ 1					63.6	36.4
152	Danpi for GIMPS	4710	⬇ 3				100.0
153	zeit	4502	⬇ 9	⬇ 4			2.0			98.0
154	México mágico	4197	⬆ 34	⬆ 11					75.5	24.5
155	Crunching@EVGA	4104	⬆ 21	⬆ 6					99.7	0.3
156	Olympic College	4082		⬇ 2						100.0
157	Noam Karni Team	3947	⬆ 30	⬆ 7	⬆ 4				80.1	19.9
158	FactorMania	3890	⬆ 32	⬆ 2				60.0			40.0
159	Kabylie	3786	⬇ 6	⬇ 4	⬇ 2		14.9	4.3	41.1	39.7
160	Korea.Prime	3376	⬆ 29	⬆ 13					69.6	30.4
161	3DCenter.org	3297	⬇ 15	⬇ 5	⬇ 2						100.0
162	Team_Brazil	2999	⬆ 2	⬆ 4	⬆ 1		83.1	0.2		16.7
163	Phi Kappa Theta	2826	⬇ 3	⬇ 5	⬆ 1				55.9	44.1
164	GIMPS.Hong Kong	2808	⬇ 10	⬇ 2	⬇ 2		2.9		54.9	42.2
165	I Love Canadian Natural Resources	2507	⬇ 6	⬆ 2						100.0
166	Pi Rho	2499	⬆ 69	⬆ 2					67.1	32.9
167	GIMPSMalaysia	2394	⬆ 24	⬆ 3					66.8	33.2
168	VRS_SE	2360		⬆ 4					66.8	33.2
169	International School of Beijing (ISB)	2316	⬇ 31	⬇ 12					99.3	0.7
170	TunisianTeam	2303	⬇ 13	⬇ 11					33.6	66.4
171	Saudi Primes	2268	⬇ 6	⬆ 3						100.0
172	GIMPS_KS	2198	⬆ 58	⬆ 3					36.6	62.0	1.4
173	Obsidian	2082	⬆ 6	⬆ 6	⬆ 1					100.0
174	The Prime Pioneers	2040	⬆ 18	⬇ 5	⬇ 1		1.1	98.7
175	Subprime Searches	2002	⬇ 8	⬆ 1			87.2			12.8
176	The Pensis	1869	⬇ 3	⬆ 1						100.0
177	F=dp/dt	1845	⬇ 3	⬆ 1					85.8	14.2
178	GIMPS_IOM	1712	⬇ 3	⬆ 2			100.0
179	Arpan Sen Labs	1617	⬆ 56	⬆ 51	⬆ 22	⬆ 10				100.0
180	San Francisco	1586	⬇ 2	⬆ 3		⬇ 1			100.0
181	ANDY	1582	⬇ 31	⬆ 1		⬇ 1			98.8	1.2
182	cr_colorado	1549	⬆ 18	⬆ 2		⬇ 1				100.0
183	Zorin OS Crew	1470	⬇ 22	⬇ 20	⬇ 4	⬇ 1			52.5	47.5
184	CZAsTc	1447	⬆ 50	⬆ 3	⬇ 1	⬇ 1			99.6	0.4
185	math.auth.gr	1355	⬆ 22	⬆ 3		⬇ 1			61.7	38.3
186	His Dark Materials	1312	⬇ 15	⬇ 5		⬇ 1				49.7	50.3
187	Czech National Team	1182	⬇ 18	⬆ 20	⬆ 1		3.2		70.1	24.2	1.5
188	Optimists Prime	1178	⬇ 41	⬇ 17	⬇ 4			100.0
189	TimE4This	1071	⬇ 7	⬇ 4	⬇ 2	⬇ 3				100.0
190	Morocco	1062	⬆ 45		⬇ 1					100.0
191	Therian Primes	1007	⬆ 44	⬆ 11				14.6		52.4	33.0
192	alan145	937	⬇ 37	⬇ 6	⬇ 2		99.5			0.5
193	AWC	801	⬆ 42	⬇ 1		⬆ 1			100.0
194	GIMPS Asturias	794	⬆ 1	⬇ 1		⬆ 1			99.6	0.4
195	Weatopians	793	⬆ 1	⬇ 1		⬆ 1			99.7	0.3
196	Sæve Nordic Prime	781	⬆ 1	⬇ 1		⬆ 1			100.0
197	hreid	776	⬇ 16	⬇ 1		⬆ 1			100.0
198	ISISS Valle Seriana	758	⬆ 1	⬆ 2		⬆ 1			100.0
199	Join Us 😈	708	⬆ 9	⬆ 2		⬆ 1	100.0
200	Happy	602	⬇ 15	⬇ 11	⬇ 8	⬇ 7					100.0
201	SGDynamo Dresden	580		⬆ 2	⬇ 1		100.0
202	PrimeObsession	539	⬆ 33	⬆ 2						100.0
203	London Computation Club	478	⬆ 8	⬆ 2						100.0
204	Team Dominik Radler	351	⬆ 2	⬆ 4			100.0
205	/r/counting	337	⬆ 20	⬆ 4
206	KnightLight	315	⬆ 7	⬆ 5						99.3
207	Yurunago	276	⬆ 28	⬆ 23						100.0
208	www.Adamek.biz	265	⬆ 8	⬆ 5						100.0
209	Math Teachers of the World	259	⬆ 8	⬆ 5					100.0
210	GIMPS Hams	253	⬆ 8	⬆ 6				100.0
211	DividerHunt	221	⬆ 12	⬆ 7			100.0
212	BrainStone	214	⬇ 49	⬇ 21						100.0
213	Manri Costa Rica	213	⬇ 20	⬆ 6						100.0
214	30thousandwon	193	⬆ 8	⬆ 8						100.0
215	Team Bulgaria	167	⬇ 13	⬇ 5							99.9
216	miiro	150	⬆ 19	⬆ 10			100.0
217	GIMPS.Peace	122	⬆ 11	⬆ 6			44.7	55.3
218	TeamUbuntu	121	⬆ 9	⬆ 6						100.0
219	sannerud.com	108	⬆ 13	⬆ 10			43.1				19.4	37.5
220	FourthFloorFourEyes	31	⬆ 9	⬆ 7			100.0
221	PROMYS	23	⬆ 10	⬆ 7							100.0
222	PARG team	21	⬆ 13	⬆ 8							100.0
223	Unteranger Primelurche	6	⬇ 20	⬇ 11	⬆ 1					99.1
224	TeamEc	1	⬇ 20	⬆ 1	⬇ 1						100.0
225	yfinder	1	⬇ 4	⬇ 5						100.0