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 2026-02-18 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	976189863					0.3		0.1		99.6
2	Slovakia	731958561	⬆ 1				0.1	97.7			2.1
3	PrimeNet	480321777	⬇ 1		⬆ 1			98.2	0.2	0.3	1.4
4	POLAND	476408162			⬇ 1		0.2	99.2	0.1		0.5
5	-Too many Ones-	189804096					0.3	92.2			7.5
6	Ars Technica Team Prime Rib	44753669						97.5	0.1	1.9	0.3
7	unRAID	33493512						99.6	0.4
8	GIMPSChina	22467672					77.6	15.7	4.0	0.7	1.9
9	One Man Team	16978088						99.5	0.5
10	More Power!!!	14600489					13.8	56.3	1.8	0.8	27.3
11	GW's legions	12730387					0.1	0.9	30.0	0.8	68.2
12	UCM-curtisc	11879129	⬆ 1	⬆ 1					99.3	0.7
13	Team-Deutschland	11648755	⬇ 1	⬇ 1			3.9	6.2	0.5	0.1	89.2
14	TeamUK	7425946					39.9	5.5	18.7	1.3	34.5	0.1
15	szerverem.hu	7293573	⬆ 220				5.8	36.9	45.9	5.1	6.2
16	Porta Kruse	6437515	⬆ 20				2.0	0.2		0.1	91.6	6.1
17	GPU to 72	4676814	⬇ 2				59.2	23.4	0.6	3.9	13.0
18	SpongeBob SquarePants	3588467	⬇ 2				0.1	31.0	57.5	10.0	1.4
19	Numberphile	2924659	⬇ 1				30.0	40.8	21.3	6.5	1.0
20	tsc	2243246	⬇ 1	⬆ 1			89.7	6.1	1.7	0.2	2.3
21	UKRAINE	2141914	⬇ 1	⬆ 1	⬆ 1		32.7	13.5	38.6	15.0
22	Dutch Power Cows	2071976	⬇ 5	⬇ 2	⬇ 1		33.6	28.0	1.3	1.3	35.9
23	Wikipedia	1966932	⬆ 1				58.8	33.9	4.0	2.3	0.8
24	Swedes Of Primes	1498223	⬇ 2				0.4	82.9	14.2	2.4
25	GIMPS.USA	1386425	⬇ 2				4.4	0.2	3.5	1.7	90.2
26	GIMPS.Japan	1346730	⬇ 5				4.5	0.1	8.1	2.0	85.3
27	GIMPS.Occitania	1314081	⬇ 2					2.5				97.5
28	MOXA	701796	⬇ 2				98.9		0.8	0.3
29	MATHSareREAL	666752	⬇ 2				95.4		3.4	1.2
30	UW Eau Claire	653055	⬆ 205	⬆ 24	⬆ 5	⬆ 1	74.4		19.3	6.3
31	MBAi.Cloud	645251	⬇ 2	⬇ 1	⬇ 1	⬇ 1			100.0
32	GIMPS.Korea	567829	⬆ 32	⬆ 3	⬇ 1		87.9	4.5	6.6	0.8	0.1
33	Rechenkraft.net	478316	⬇ 5	⬇ 2	⬇ 1		4.6	59.4	2.9	5.9	26.7	0.5
34	Terry Kim Team	476974	⬇ 3	⬇ 1	⬇ 1		98.3		0.8	0.4
35	citizenscience.ru	436684	⬇ 5	⬇ 3	⬇ 1		83.5	7.3	4.0	0.9	3.7	0.7
36	Buhr	418385	⬇ 2	⬇ 2			62.6	2.9	19.8	6.2	8.6
37	S485122	310900	⬇ 4					95.0		5.0
38	Smoke-it	284313	⬇ 6	⬇ 2			91.0	6.7	1.7
39	YahsTeam	226339	⬆ 2	⬇ 1			88.1		9.9	2.0
40	nranks	211170	⬆ 5	⬆ 6	⬆ 5		33.2	0.6	3.3	0.4	62.6
41	GIMPS Team Philippines	207161	⬆ 1	⬆ 2	⬆ 2		80.0		2.4	1.7	14.9
42	NerdyGirls	205542	⬆ 5	⬇ 3	⬇ 2		2.2	41.7	7.9	48.3
43	Canada	204616	⬇ 4	⬇ 3	⬇ 2			3.1	66.7	29.1
44	randomteam	199318	⬇ 1		⬇ 2						100.0
45	Team Tartan	195077	⬇ 5	⬇ 3	⬇ 1				77.1	22.9
46	GIMPS China	175710	⬇ 11	⬇ 5			94.4		2.4	0.4	2.7
47	404 - "Primes not Found"	163689	⬆ 25	⬆ 10	⬆ 1		71.8		28.2
48	BitMEX Research	154324	⬇ 10	⬇ 3	⬇ 1				95.6	4.4
49	OverclockerAustralia	147192	⬇ 1	⬇ 2			59.7		21.2	15.6
50	Colorado School of Mines	138420	⬆ 68	⬆ 15	⬆ 1		87.9		9.0	3.0
51	Team China	125193	⬆ 2	⬇ 3	⬇ 1				99.7	0.3
52	GIMPS.NZ	120379	⬇ 3	⬇ 3			78.7		10.3	11.0
53	SASAKI	114691	⬇ 1	⬇ 2			100.0
54	Unicamp	113656	⬆ 8	⬆ 2	⬆ 2		73.2	0.3	21.5	5.0
55	EgyptianPolymaths	113123		⬇ 2		⬆ 1		34.1			61.1
56	Cap'n Entropy's Cavalcade of Wonderment	112418	⬇ 6	⬇ 6	⬇ 2	⬇ 1	75.3	5.1	17.4	2.2
57	Wisconsin	108922	⬇ 6	⬇ 5			51.9		25.8	22.3
58	Hungary	94115	⬇ 2		⬆ 1		0.5		1.9	2.9	94.3
59	GIMPS.France	90126	⬆ 10	⬆ 3	⬆ 1		12.4	48.2	5.3	18.5	15.3
60	Georgia Tech	85339	⬇ 23	⬇ 5	⬇ 2		93.3		6.7
61	SHADO	84766	⬇ 1	⬆ 2					63.5	17.7	11.0	2.2
62	Net-Work	77426	⬇ 1	⬇ 1	⬆ 1		2.2	2.4			87.0
63	UIUC	76775	⬆ 5	⬆ 3	⬇ 1				69.8	30.1
64	Eratosthenes Sieve	74453	⬆ 1	⬆ 3			0.7		98.5	0.7
65	Esperanto	71929	⬇ 2	⬇ 1				24.2	16.2	59.4	0.2
66	AMD Users	62709	⬆ 5	⬆ 6	⬆ 4	⬆ 2	74.4		13.8	11.8
67	Team Israel	62609	⬇ 1	⬆ 3	⬆ 2	⬇ 1	97.1		1.3	1.6
68	GIMPS.NEO	62026	⬇ 1	⬆ 1		⬆ 2			76.2	23.8
69	LTT fans	61165	⬇ 11	⬇ 9	⬇ 3		45.7		8.8	1.7	43.8
70	Team Finland	61155	⬇ 24	⬇ 11	⬇ 3	⬇ 3	77.4	0.5	21.7		0.4
71	ParadoxZ Commando	57993	⬆ 2		⬆ 1	⬆ 2			72.4	27.6
72	AJ	57819	⬆ 4	⬆ 2	⬆ 2	⬇ 1			75.8	24.2
73	Team_Italia	57461	⬆ 5			⬆ 1	2.6		68.6	21.7	2.2	4.2
74	Brno University of Technology	57023	⬇ 17	⬇ 6	⬇ 3	⬇ 2		23.9	61.8	14.2
75	Team Belgium	55816	⬇ 5				1.4	7.3	35.6	14.0	41.8
76	S147127	52769	⬆ 1				23.2		10.8	66.0
77	Wile E. Coyote	50367	⬆ 2	⬆ 1	⬆ 1				79.7	4.2	16.2
78	ComputerraRU	49358	⬇ 19	⬇ 1	⬇ 1		15.9		74.5	9.5
79	Team Viet Nam	44241	⬇ 25				27.6		30.1	31.8	10.5
80	Team Austria	41864	⬇ 5				98.8			1.2
81	LimePrime	36272	⬇ 1	⬆ 1	⬆ 1			7.2	87.8	5.0
82	Team H	35301		⬆ 1	⬇ 1		10.3	1.1	88.1	0.5
83	MES-Team	35028	⬇ 9	⬇ 2			71.0	7.7		21.3
84	Hermessz	34964	⬇ 1	⬆ 1			62.2		37.8
85	socal_prime	34658	⬇ 4	⬇ 1				0.9	66.1	32.9
86	HardOCP	33166	⬆ 3	⬆ 1	⬆ 2				79.1	20.9
87	huskers-gimps	33079	⬆ 10	⬇ 1	⬇ 1				72.7	27.3
88	Debian	32458	⬆ 3	⬆ 1	⬇ 1				98.3	1.7
89	Small-Team-2000	30041	⬇ 4	⬇ 1					10.4	89.6
90	IOTA	25077	⬆ 145	⬆ 145	⬆ 8	⬆ 1	97.9			2.1
91	Costa Rica	24372	⬇ 1		⬇ 1	⬇ 1			76.6	23.1
92	Turku	24285	⬆ 16	⬆ 27	⬆ 1				100.0
93	á•™(⇀‸↼‶)á•—	23231	⬆ 40	⬆ 2	⬇ 2		0.8		98.9	0.4
94	Channel 4	21929	⬆ 26	⬆ 13	⬇ 2				83.0	17.0
95	Team Retired	20412	⬇ 1	⬇ 2	⬇ 1				26.8	10.4
96	The Fellowship of Infinity	20266	⬆ 17	⬆ 5	⬇ 1				99.5	0.5
97	PrimitiveRootsCircle	19507	⬆ 4	⬇ 1	⬇ 1		29.6		44.3	23.6	2.5
98	NanJing Tech	19501	⬆ 137	⬇ 1	⬇ 1				100.0
99	A Single Engineer	18948	⬇ 1	⬇ 1	⬆ 1				73.3	26.7
100	SpartaAlumni	17882	⬇ 5	⬆ 2	⬆ 1				71.1	28.9
101	Quantus	17817	⬇ 13	⬇ 1	⬆ 1		7.9		30.4	26.2		35.5
102	MurrayInfoSys	17720	⬆ 14	⬆ 6	⬆ 1				66.5	33.5
103	MadPoo	17697	⬇ 59	⬇ 13	⬆ 1			26.6		73.4
104	Portland State University	17501	⬇ 18	⬇ 10	⬆ 1		23.2	26.6	36.3	13.8
105	Team Norway	17168	⬇ 9	⬇ 13	⬇ 6		80.8			4.4	14.6
106	VIPR	16434	⬆ 8	⬆ 11	⬆ 3		35.6		43.1	21.2
107	Nerdfighters for Mersenne Primes	16053	⬇ 4	⬇ 2			2.9		81.9	15.2
108	Ozzie Prime	15612	⬇ 15	⬇ 9	⬇ 2			5.4	59.0	14.1		21.4
109	GIMPS.Portugal	14583	⬇ 4		⬆ 1		0.1	71.7		28.1
110	Spain	14417	⬇ 26	⬇ 7	⬆ 1				65.0	35.0
111	SETI.Germany	14078		⬆ 4	⬆ 4	⬆ 1		6.7	22.5	70.8
112	Team Slovenia	13929	⬇ 25	⬇ 8	⬇ 4	⬇ 1			72.3	27.7
113	moeses	13334	⬇ 4	⬇ 2	⬆ 3				99.2	0.8
114	GIMPS.Taiwan	12908	⬇ 14	⬇ 8	⬇ 1	⬆ 1			85.8	13.8	0.1
115	Politeknik Banting, Selangor	12770	⬇ 23	⬇ 5	⬇ 3	⬇ 1	80.0		6.2	13.8
116	Hyperion	12388	⬇ 9	⬇ 3	⬇ 2				2.1	28.7
117	NUST	12234	⬆ 118	⬆ 13	⬆ 1		9.8	86.8		3.5
118	Granada	12054	⬇ 12	⬇ 6	⬆ 1		34.6		6.4	58.4
119	Mensa	11954	⬇ 4	⬇ 1	⬇ 2				78.9	21.1
120	Abacus	11122	⬆ 2	⬆ 3					92.6	7.4
121	FREE ROBUX	10852	⬆ 114	⬇ 1	⬆ 1				100.0
122	Royal Military College of Canada	10691	⬇ 1		⬆ 1		89.7		7.9	2.4
123	MES22-Team	10564	⬇ 24	⬇ 9	⬆ 1		100.0
124	Die Zeitfinder	10009	⬇ 14	⬇ 3	⬆ 1				100.0
125	FreeBSD	9831	⬇ 21	⬆ 1	⬆ 1	⬆ 2	0.5		84.9	14.7
126	youngfun429	9665	⬇ 24	⬇ 10	⬇ 5	⬇ 1			64.1	35.9
127	Syntony	9448	⬇ 2	⬆ 1	⬆ 1	⬇ 1				100.0
128	JiBoTeam	9370	⬆ 3	⬇ 1	⬇ 1					100.0
129	Shaffer's Studio	8940	⬇ 3	⬇ 4					86.4	13.4
130	Triangle	8840	⬇ 7	⬇ 1					96.2	3.8
131	Server66	8528	⬇ 3	⬆ 1	⬆ 1		100.0
132	Com Systems (RU)	8480	⬆ 28	⬆ 6	⬆ 3				64.2	35.8
133	Aiblspitz	8421	⬆ 3	⬆ 1			2.0	62.0	18.8	15.3	2.0
134	Furry Primes	8022	⬇ 2	⬇ 1			58.8		27.1	14.1
135	TurkishMath	7792	⬇ 11	⬇ 4	⬇ 4	⬆ 1			90.2	9.8
136	irowiki	7744	⬇ 9	⬇ 1		⬇ 1				100.0
137	Team Splunk	7605	⬇ 2	⬇ 1				28.1	71.9
138	RobotechResearch	7319	⬆ 42	⬆ 46	⬆ 24	⬆ 20			43.6	56.4
139	University of Waterloo	7044	⬆ 5	⬆ 3	⬆ 4	⬇ 1			100.0
140	Prime Rib	6863	⬇ 28		⬇ 2	⬇ 1			97.0	3.0
141	SU Prime Pirates	6437	⬇ 1		⬇ 1	⬇ 1			61.5	38.5
142	GIMPS Romania	6325	⬆ 3	⬆ 3		⬇ 1			100.0
143	WSU Cougars	6303	⬇ 5	⬇ 4	⬇ 4	⬇ 1			61.6	38.3
144	Brasil	6237	⬇ 10	⬇ 7	⬇ 3	⬇ 1			75.0	24.9
145	Elisabeth-von-Thadden-Schule	6009	⬆ 2	⬇ 2		⬇ 1			38.6	61.4
146	Team Christensen	5862	⬇ 4	⬇ 2	⬇ 2	⬇ 1				100.0
147	The_Dude_Abides	5248	⬇ 10	⬆ 1	⬇ 1	⬇ 1	37.6			50.7
148	nmbarek_team	4960	⬇ 29	⬇ 24	⬇ 1	⬇ 1			99.6	0.4
149	zeit	4944	⬇ 10		⬆ 2	⬇ 1	2.2			97.8
150	Hong Kong GIMP	4905	⬆ 8	⬆ 3	⬇ 2	⬇ 1			63.6	36.4
151	teamMALI	4901	⬇ 2	⬇ 1	⬇ 2	⬇ 1			79.3	20.6
152	Danpi for GIMPS	4710	⬇ 2		⬇ 2	⬇ 1	100.0
153	The East Coast	4426	⬇ 24	⬆ 2	⬇ 1	⬇ 1	99.3	0.7
154	Olympic College	4166	⬆ 2	⬆ 4	⬆ 1	⬇ 1				100.0
155	Kabylie	4126	⬇ 2	⬆ 1	⬆ 1	⬇ 1	15.6	4.2	37.7	42.5
156	3DCenter.org	4005	⬇ 13	⬇ 5	⬇ 2	⬇ 1					100.0
157	International School of Beijing (ISB)	3851	⬇ 16	⬇ 11		⬇ 1			99.6	0.4
158	Phi Kappa Theta	3600	⬆ 6	⬆ 2		⬇ 1			65.5	34.5
159	TunisianTeam	3415	⬇ 5	⬆ 2					22.7	77.3
160	FactorMania	3357	⬆ 69	⬆ 6	⬆ 6			60.2			39.8
161	Crunching@EVGA	3311	⬆ 74	⬆ 22	⬇ 1				99.6	0.4
162	GIMPS.Hong Kong	3272	⬇ 5	⬇ 5	⬇ 1		3.9		47.1	49.0
163	Zorin OS Crew	3193	⬇ 2	⬇ 1					70.2	29.7
164	Noam Karni Team	3156	⬆ 27	⬆ 6	⬆ 6	⬆ 6			75.1	24.9
165	México mágico	3143	⬆ 21		⬇ 1	⬇ 1			75.4	24.6
166	Team_Brazil	2999	⬇ 1	⬇ 3	⬇ 1	⬇ 1	83.1	0.2		16.7
167	I Love Canadian Natural Resources	2507	⬇ 8	⬇ 3		⬇ 1				100.0
168	Pi Rho	2498	⬆ 67	⬆ 46		⬇ 1			67.2	32.8
169	The Prime Pioneers	2437	⬆ 28	⬆ 7			0.9	88.2		10.4	0.3
170	GIMPSMalaysia	2394	⬆ 43	⬆ 5	⬆ 5	⬆ 5			66.8	33.2
171	Optimists Prime	2392	⬇ 25	⬇ 24	⬇ 18	⬇ 3		100.0
172	VRS_SE	2359	⬇ 1	⬇ 1	⬇ 1	⬇ 1			66.8	33.2
173	Korea.Prime	2331	⬆ 20	⬇ 1	⬇ 1	⬇ 1			67.0	33.0
174	Saudi Primes	2268	⬇ 6	⬇ 1	⬇ 1	⬇ 1				100.0
175	GIMPS_KS	2192	⬆ 60	⬆ 16	⬇ 1	⬇ 1			36.7	61.9	1.4
176	Subprime Searches	2002	⬇ 6	⬇ 9			87.2			12.8
177	The Pensis	1869	⬇ 1							100.0
178	F=dp/dt	1845	⬇ 1						85.8	14.2
179	Obsidian	1821	⬆ 13							100.0
180	GIMPS_IOM	1712	⬇ 1	⬆ 1			100.0
181	His Dark Materials	1635	⬇ 15	⬇ 1						52.8	47.2
182	ANDY	1591	⬇ 31	⬇ 28					98.2	1.8
183	San Francisco	1586	⬇ 2	⬆ 2					100.0
184	cr_colorado	1549	⬆ 10	⬆ 2	⬆ 1					100.0
185	TimE4This	1481		⬆ 3	⬆ 2					100.0
186	alan145	1447	⬇ 31	⬇ 12	⬇ 2		70.8	2.1		0.3	26.8
187	CZAsTc	1447	⬆ 47	⬆ 46	⬆ 1				99.6	0.4
188	math.auth.gr	1355	⬆ 20	⬆ 18	⬆ 1				61.7	38.3
189	Happy	1341		⬆ 1	⬆ 1						99.9
190	Morocco	1060	⬆ 45	⬆ 15	⬆ 3	⬆ 2				100.0
191	BrainStone	955	⬇ 28	⬇ 9		⬇ 1				100.0
192	AWC	801	⬆ 43	⬆ 43		⬇ 1			100.0
193	GIMPS Asturias	794	⬆ 5		⬆ 1				99.6	0.4
194	Weatopians	793	⬆ 5		⬆ 1				99.7	0.3
195	Sæve Nordic Prime	781	⬆ 5		⬆ 1				100.0
196	hreid	776	⬇ 12	⬆ 1	⬆ 1				100.0
197	crazyBerlin	774	⬇ 14	⬆ 1	⬆ 1	⬆ 1			100.0
198	Artists of Fine Art	772	⬇ 50	⬇ 29	⬇ 12	⬇ 1			99.1	0.9
199	UCLA Linux Users Group	769	⬇ 37	⬇ 12					100.0
200	ISISS Valle Seriana	761	⬆ 1	⬇ 1	⬆ 2				99.6	0.4
201	Join Us 😈	708	⬆ 8	⬆ 6	⬆ 2		100.0
202	Therian Primes	587	⬆ 33	⬆ 14	⬆ 12			10.1		89.9
203	SGDynamo Dresden	580	⬇ 1	⬇ 1	⬆ 1		100.0
204	PrimeObsession	539	⬆ 31		⬆ 1					100.0
205	London Computation Club	478	⬆ 6	⬆ 3	⬆ 1					100.0
206	EggCelentes	466	⬇ 37	⬇ 38	⬇ 5					100.0
207	Czech National Team	353	⬇ 55	⬇ 6	⬆ 1		10.6			81.1	5.1
208	Team Dominik Radler	351	⬇ 1	⬆ 1	⬇ 1		100.0
209	/r/counting	337	⬆ 16	⬆ 3
210	Team Bulgaria	315	⬇ 7	⬇ 7							99.9
211	KnightLight	315	⬆ 4							99.3
212	Unteranger Primelurche	268	⬇ 8	⬆ 1						100.0
213	www.Adamek.biz	265	⬆ 3	⬆ 2						100.0
214	Math Teachers of the World	259	⬆ 3	⬆ 3	⬆ 1				100.0
215	Math_Lovers	256	⬇ 25	⬇ 19	⬆ 1					100.0
216	GIMPS Hams	253	⬆ 2	⬆ 2	⬆ 1			100.0
217	Lithuania LT	247	⬆ 3	⬆ 3	⬆ 1					100.0
218	DividerHunt	221	⬆ 5	⬆ 4	⬆ 1		100.0
219	Manri Costa Rica	213	⬇ 45	⬇ 27	⬆ 1					100.0
220	yfinder	208	⬆ 1	⬆ 3	⬆ 1					100.0
221	Name (t) = A x e^kt	207	⬇ 11	⬆ 3	⬆ 1					100.0
222	30thousandwon	193	⬇ 10	⬆ 3	⬆ 1					100.0
223	GIMPS.Peace	122	⬆ 5	⬆ 4	⬆ 1		44.7	55.3
224	TeamUbuntu	121	⬆ 3	⬆ 4	⬆ 1					100.0
225	TeamEc	49	⬇ 19	⬆ 1	⬆ 1						100.0
226	miiro	47	⬆ 9	⬆ 9	⬆ 4		100.0
227	FourthFloorFourEyes	46	⬆ 3	⬆ 2			100.0
228	PROMYS	23	⬆ 3	⬆ 2							100.0
229	sannerud.com	10	⬆ 3	⬆ 3							100.0