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 2026-03-24 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	887576782					0.3		0.1		99.7
2	Slovakia	767113518	⬆ 1				0.1	97.8	0.1		2.0
3	PrimeNet	337615335	⬇ 1	⬆ 1	⬆ 1			97.4	0.3	0.4	1.9
4	POLAND	302485019		⬇ 1	⬇ 1		0.3	98.5	0.2		0.9
5	-Too many Ones-	188520266					0.2	92.1			7.7
6	Ars Technica Team Prime Rib	87060715						98.8		1.1
7	unRAID	33451359						99.6	0.3
8	GIMPSChina	22399390					73.0	18.6	4.0	0.6	3.7
9	More Power!!!	14584891	⬆ 1	⬆ 1			13.5	56.4	1.9	0.9	27.3
10	One Man Team	13943651	⬇ 1	⬇ 1				99.4	0.6
11	GW's legions	12824126					0.1	0.9	31.6	1.1	66.4
12	Team-Deutschland	11917754		⬆ 1	⬆ 1		3.3	18.7	0.4	0.1	77.3
13	UCM-curtisc	11819273		⬇ 1	⬇ 1				99.3	0.7
14	TeamUK	7539718					42.2	4.4	18.1	1.3	33.8	0.1
15	szerverem.hu	7497947	⬆ 220				5.7	37.9	45.4	5.0	6.1
16	Porta Kruse	6421946	⬆ 5				2.0	0.3			91.5	6.1
17	GPU to 72	4628640	⬇ 2				54.6	26.0	0.5	3.9	14.9
18	SpongeBob SquarePants	2964834	⬇ 2					30.9	59.6	9.3	0.2
19	Numberphile	2840356	⬇ 2				27.2	42.5	22.5	6.7	0.8
20	tsc	2416819	⬇ 1				83.1	5.3	1.5	0.3	9.9
21	Wikipedia	2033344	⬆ 1	⬆ 2	⬆ 1	⬆ 1	60.0	32.7	4.0	2.2	0.8
22	UKRAINE	2026773	⬇ 2	⬇ 1	⬇ 1	⬇ 1	25.9	14.2	43.7	16.1
23	UW Eau Claire	1859345	⬆ 44	⬆ 5	⬆ 1		86.9		9.5	3.6
24	Dutch Power Cows	1770296	⬇ 6	⬇ 2	⬇ 1		31.6	28.5	1.4	1.4	37.1
25	GIMPS.USA	1426138	⬇ 1		⬆ 1		6.1	0.4	4.6	1.4	87.4
26	Swedes Of Primes	1412808	⬇ 3	⬇ 2	⬇ 1		0.5	81.8	15.1	2.6
27	GIMPS.Japan	1361405	⬇ 2	⬇ 1			4.4	0.1	8.9	2.2	84.4
28	GIMPS.Occitania	1302492	⬇ 2	⬇ 1				4.1				95.9
29	GIMPS.Korea	765303	⬆ 7	⬆ 3			89.1	4.5	5.4	0.8	0.1
30	MBAi.Cloud	725911							100.0
31	MATHSareREAL	637761	⬇ 4				95.7		3.1	1.2
32	MOXA	598939	⬇ 4	⬇ 3			99.0		0.6	0.4
33	citizenscience.ru	505296	⬇ 2	⬆ 2			87.2	4.4	3.8	0.8	3.1	0.6
34	Rechenkraft.net	455391	⬇ 5	⬇ 1			4.8	57.3	3.2	5.5	28.6	0.6
35	Buhr	444148	⬇ 2	⬆ 1	⬆ 1		59.3	3.5	19.0	5.9	12.3
36	Terry Kim Team	438190	⬇ 4	⬇ 2	⬇ 1		97.4		1.6	0.6
37	S485122	309115	⬇ 2					95.0		5.0
38	Smoke-it	266570	⬇ 4				90.5	7.1	1.8
39	Colorado School of Mines	210925	⬆ 47	⬆ 10	⬆ 7	⬆ 1	91.0		6.9	2.1
40	YahsTeam	209401	⬇ 2	⬇ 1	⬇ 1	⬇ 1	88.8		9.3	1.9
41	randomteam	208173	⬆ 1	⬆ 3	⬇ 1						100.0
42	NerdyGirls	205403	⬆ 1		⬇ 1			41.7	7.5	50.8
43	GIMPS Team Philippines	204142	⬆ 2	⬇ 2	⬇ 1		71.8		3.7	1.6	20.8
44	404 - "Primes not Found"	198114	⬆ 24	⬆ 2	⬇ 1		79.0		21.0
45	nranks	196851	⬇ 1	⬇ 5			36.3	0.6	4.0	0.4	58.7
46	Canada	192944	⬇ 7	⬇ 3	⬇ 2			2.9	65.1	30.8
47	Team Tartan	188318	⬇ 7	⬇ 2					76.3	23.7
48	OverclockerAustralia	148949	⬇ 1	⬆ 2			59.0		20.9	16.5
49	GIMPS China	137060	⬇ 12	⬇ 2			92.3		3.7	0.2	3.5
50	BitMEX Research	132661	⬇ 9	⬇ 2					95.4	4.6
51	Team China	122657							99.7	0.3
52	GIMPS.NZ	120515	⬇ 2				79.1		9.6	11.3
53	Unicamp	119450	⬆ 2	⬆ 2			71.9	0.2	23.1	4.8
54	SASAKI	111472	⬇ 1				100.0
55	EgyptianPolymaths	108199	⬇ 1	⬇ 2				39.4			55.4
56	GIMPS.France	103721	⬆ 9	⬆ 3	⬆ 2	⬆ 1	10.8	58.5	3.8	13.4	13.3
57	Wisconsin	103281	⬇ 5		⬇ 1	⬇ 1	48.6		27.2	24.2
58	Cap'n Entropy's Cavalcade of Wonderment	99604	⬇ 9	⬇ 2	⬇ 1		75.2	5.6	17.1	2.1
59	SHADO	90779	⬇ 2	⬆ 1					66.5	16.2	10.2	1.9
60	UIUC	81618	⬆ 3	⬆ 3	⬆ 1				70.7	29.3
61	Net-Work	75957	⬇ 1		⬆ 1		3.2	1.8			86.2
62	Eratosthenes Sieve	75602		⬆ 2	⬆ 1		0.7		96.5	2.8
63	AMD Users	74638	⬆ 10	⬆ 3	⬆ 1		62.5	0.8	12.7	23.4	0.5
64	Esperanto	70464	⬇ 3	⬆ 1	⬆ 1	⬆ 1		24.8	11.0	64.0	0.2
65	Hungary	70074	⬇ 9	⬇ 7	⬇ 5	⬇ 1	0.6		2.6	2.5	93.9
66	NanJing Tech	63304	⬆ 130	⬆ 32	⬆ 12	⬆ 1	23.7		67.3	9.1
67	AJ	62804	⬆ 9	⬆ 2	⬇ 1	⬇ 1			75.6	24.4
68	Wile E. Coyote	60675	⬆ 12	⬆ 8	⬆ 1				78.1	2.2	19.7
69	Team_Italia	60011		⬆ 2	⬆ 2		2.7		70.4	20.4	2.1	3.8
70	ParadoxZ Commando	58424			⬇ 3				72.7	27.3
71	Team Israel	58239	⬇ 5	⬇ 4	⬇ 1		97.3		1.4	1.3
72	GIMPS.NEO	57280	⬇ 8	⬇ 4	⬇ 4				77.2	22.8
73	IOTA	57146	⬆ 162	⬆ 17	⬆ 3		94.7		2.9	2.4
74	Argentina	56029	⬆ 161	⬆ 153	⬆ 6	⬆ 1			100.0
75	S147127	55380	⬆ 2		⬇ 3	⬇ 1	26.2		11.9	61.8
76	Brno University of Technology	53478	⬇ 18	⬇ 4	⬇ 3			20.2	64.5	15.2
77	Team Belgium	51556	⬇ 3	⬇ 3	⬇ 3		1.1	8.0	34.6	14.8	41.5
78	ComputerraRU	50033	⬇ 6		⬇ 1		15.3		75.3	9.4
79	LTT fans	46678	⬇ 20	⬇ 6	⬇ 4		35.3		4.9	0.9	58.9
80	Team Viet Nam	43404	⬇ 2	⬇ 1	⬇ 1		28.1		30.7	30.5	10.7
81	Turku	37051	⬆ 43	⬆ 10	⬆ 1				100.0
82	Team Austria	36747	⬇ 3	⬇ 2	⬇ 1		94.8	0.6	4.6
83	HardOCP	35730	⬆ 4	⬆ 2	⬆ 2	⬆ 1			77.8	22.2
84	Team H	35699	⬇ 2	⬇ 3	⬇ 1	⬇ 1	11.6	0.5	87.3	0.6
85	Debian	34848		⬆ 2	⬇ 1				98.4	1.6
86	huskers-gimps	34796	⬆ 3	⬆ 2	⬆ 1				74.6	25.4
87	Hermessz	33032	⬇ 3	⬇ 5	⬆ 1		64.6		35.4
88	MES-Team	31013	⬇ 13	⬇ 5	⬆ 1		71.8	7.6		20.7
89	socal_prime	30365	⬇ 6	⬇ 3	⬆ 1			1.0	66.7	32.2	0.1
90	Small-Team-2000	29202	⬇ 2	⬇ 1	⬆ 1				10.7	89.3
91	ᕙ(⇀‸↼‶)ᕗ	26412	⬆ 25	⬆ 2	⬆ 2	⬆ 1	0.8		98.8	0.4
92	LimePrime	25798	⬇ 11	⬇ 8		⬇ 1		5.5	87.4	7.1
93	VIPR	25141	⬆ 24	⬆ 11	⬆ 2		61.1		25.1	13.8
94	The Fellowship of Infinity	22618	⬆ 14	⬆ 1	⬆ 2				99.5	0.5
95	Channel 4	22408	⬆ 8	⬇ 1	⬇ 1				81.1	18.9
96	Costa Rica	22035	⬇ 6	⬇ 4	⬆ 1	⬆ 1			73.6	26.1
97	MurrayInfoSys	20155	⬆ 15	⬆ 3	⬆ 2	⬆ 1			66.7	33.3
98	Team Retired	19866	⬇ 3	⬇ 2		⬆ 1			27.6	10.7
99	Georgia Tech	19629	⬇ 53	⬇ 37	⬇ 13	⬇ 3	45.6		54.4
100	A Single Engineer	18818		⬇ 1	⬆ 2				74.0	26.0
101	PrimitiveRootsCircle	18690	⬆ 1	⬇ 4	⬇ 1		24.9		46.5	26.0	2.6
102	SpartaAlumni	17597	⬇ 8		⬆ 2				70.7	29.3
103	Ozzie Prime	16273	⬇ 5	⬆ 4	⬇ 2			4.8	43.3	15.0		36.8
104	Team Norway	16039	⬇ 8	⬆ 1	⬆ 1		81.4			4.8	13.7
105	Nerdfighters for Mersenne Primes	15019	⬇ 1	⬆ 3	⬆ 3				88.0	12.0
106	Quantus	14881	⬇ 13			⬆ 1	8.2		20.9	28.5		42.5
107	Portland State University	14675	⬇ 16	⬇ 4	⬇ 4	⬇ 1	5.7	30.7	49.0	14.6
108	Spain	14667	⬇ 16	⬆ 3	⬆ 1				63.9	36.1
109	GIMPS.Portugal	14450	⬇ 2		⬆ 1		0.1	72.4		27.5
110	SETI.Germany	14419	⬆ 3		⬆ 1			6.6	22.0	71.4
111	NUST	14022	⬆ 47	⬆ 5	⬆ 3		15.3	75.7	6.0	3.0
112	Team Finland	13653	⬇ 64	⬇ 35	⬆ 1		0.9		97.1		2.0
113	MadPoo	13273	⬇ 42	⬇ 12	⬇ 6	⬆ 1		35.4		64.6
114	Mensa	12705	⬆ 4	⬆ 5	⬆ 1	⬆ 1			74.2	25.8
115	moeses	12579	⬇ 4	⬇ 2	⬆ 1	⬇ 2			99.1	0.9
116	Team Slovenia	12406	⬇ 19	⬇ 4	⬇ 4				75.1	24.9
117	GIMPS.Taiwan	11883	⬇ 18	⬇ 3					86.6	12.9	0.1
118	Politeknik Banting, Selangor	11520	⬇ 17	⬇ 3			87.0		6.9	6.1
119	Granada	10861	⬇ 10	⬇ 1			33.5		14.4	51.4
120	FREE ROBUX	10852	⬆ 115	⬆ 1					100.0
121	Aiblspitz	10694	⬆ 10	⬆ 11	⬆ 2	⬆ 2	1.5	70.1	14.8	12.0	1.6
122	Royal Military College of Canada	10691	⬇ 3		⬇ 1	⬇ 1	89.7		7.9	2.4
123	Com Systems (RU)	10561	⬆ 24	⬆ 10	⬇ 1	⬇ 1			66.4	33.6
124	Server66	9937	⬆ 4	⬆ 7	⬆ 2		100.0
125	Syntony	9610			⬆ 3					100.0
126	RobotechResearch	9439	⬆ 52	⬆ 12	⬆ 3	⬆ 1			42.7	57.3
127	Hyperion	9405	⬇ 17	⬇ 10	⬇ 2	⬇ 1			2.8	26.4
128	Die Zeitfinder	9249	⬇ 14		⬆ 6				91.6	8.4
129	Shaffer's Studio	8921	⬇ 3		⬆ 1				86.9	13.0
130	Triangle	8849	⬇ 7		⬆ 1				96.4	3.6
131	JiBoTeam	8829	⬇ 4	⬇ 4	⬆ 1					100.0
132	FreeBSD	8819	⬇ 17	⬇ 8	⬇ 8		0.5		80.3	19.2
133	TurkishMath	8642	⬇ 12	⬆ 2	⬆ 3				82.1	17.9
134	youngfun429	8440	⬇ 28	⬇ 8	⬇ 1				64.2	35.8
135	Abacus	8141	⬇ 15	⬇ 15					96.2	3.8
136	MES22-Team	8136	⬇ 31	⬇ 13	⬇ 9		100.0
137	Team Splunk	7605	⬇ 5		⬆ 1			28.1	71.9
138	University of Waterloo	7461	⬇ 4	⬆ 1	⬆ 1	⬆ 1			100.0
139	irowiki	7410	⬇ 10	⬇ 3	⬇ 2	⬇ 1				100.0
140	Brasil	6656	⬇ 7		⬆ 1				82.1	17.8
141	Prime Rib	6538	⬇ 5		⬆ 1				96.6	3.4
142	SU Prime Pirates	6437	⬇ 5		⬆ 1				61.5	38.5
143	Team Christensen	5937	⬇ 3	⬆ 2	⬆ 1					100.0
144	GIMPS Romania	5840		⬆ 2	⬆ 1		0.4		95.1	4.4
145	Elisabeth-von-Thadden-Schule	5757	⬇ 4	⬇ 1	⬆ 1				40.3	59.7
146	Furry Primes	5575	⬇ 16	⬇ 12	⬇ 6		79.7			20.3
147	teamMALI	5165	⬇ 4	⬆ 4	⬆ 3				75.5	24.5
148	WSU Cougars	5033	⬇ 13	⬇ 5					61.7	38.3
149	The_Dude_Abides	5001	⬇ 7	⬇ 2	⬇ 2		37.9			53.2
150	nmbarek_team	4954	⬇ 28	⬇ 2	⬇ 1				99.8	0.2
151	Hong Kong GIMP	4900	⬆ 1	⬇ 1					63.6	36.4
152	Danpi for GIMPS	4710	⬇ 3				100.0
153	Olympic College	4609	⬆ 1		⬆ 3					100.0
154	zeit	4502	⬇ 6	⬇ 5	⬇ 1		2.0			98.0
155	México mágico	4200	⬆ 35	⬆ 5	⬇ 1				75.4	24.6
156	Crunching@EVGA	4104	⬆ 21	⬆ 1	⬇ 1				99.7	0.3
157	FactorMania	4019	⬆ 27	⬇ 1				58.1			41.9
158	Noam Karni Team	3947	⬆ 31	⬆ 1	⬆ 3				80.1	19.9
159	Kabylie	3786	⬇ 6	⬇ 5	⬇ 1		14.9	4.3	41.1	39.7
160	Korea.Prime	3634	⬆ 13	⬆ 10	⬇ 1				64.7	35.3
161	3DCenter.org	3209	⬇ 15	⬇ 6	⬇ 1						100.0
162	Team_Brazil	2999	⬆ 1				83.1	0.2		16.7
163	Phi Kappa Theta	2826	⬇ 4						55.9	44.1
164	GIMPS.Hong Kong	2808	⬇ 9	⬇ 6			2.9		54.9	42.2
165	I Love Canadian Natural Resources	2507	⬇ 8							100.0
166	Pi Rho	2499	⬆ 69						67.1	32.9
167	GIMPSMalaysia	2394	⬆ 24	⬆ 1					66.8	33.2
168	VRS_SE	2360	⬇ 1	⬆ 1					66.8	33.2
169	International School of Beijing (ISB)	2316	⬇ 31	⬇ 8					99.3	0.7
170	Saudi Primes	2268	⬇ 6	⬆ 1	⬆ 1					100.0
171	GIMPS_KS	2199	⬆ 34	⬆ 1	⬆ 1				36.5	62.0	1.4
172	Obsidian	2082	⬆ 8	⬆ 5	⬆ 1					100.0
173	TunisianTeam	2052	⬇ 17	⬇ 9	⬇ 3				37.7	62.3
174	Arpan Sen Labs	2043	⬆ 61	⬆ 53	⬆ 27	⬆ 5			20.7	79.3
175	The Prime Pioneers	2011	⬆ 17	⬇ 8	⬇ 1	⬇ 1	1.2	98.8
176	Subprime Searches	2002	⬇ 10	⬇ 2	⬇ 1	⬇ 1	87.2			12.8
177	The Pensis	1869	⬇ 3	⬇ 2	⬇ 1	⬇ 1				100.0
178	F=dp/dt	1845	⬇ 3	⬇ 2	⬇ 1	⬇ 1			85.8	14.2
179	GIMPS_IOM	1712	⬇ 3		⬇ 1	⬇ 1	100.0
180	San Francisco	1586	⬇ 1	⬆ 2	⬇ 1				100.0
181	ANDY	1582	⬇ 31		⬇ 1				98.8	1.2
182	cr_colorado	1549	⬆ 19	⬆ 1	⬇ 1					100.0
183	Zorin OS Crew	1470	⬇ 21	⬇ 5	⬇ 1				52.5	47.5
184	CZAsTc	1447	⬆ 50	⬆ 1	⬇ 1				99.6	0.4
185	math.auth.gr	1355	⬆ 23	⬆ 1					61.7	38.3
186	His Dark Materials	1300	⬇ 16	⬇ 6						50.1	49.8
187	Czech National Team	1182	⬇ 19	⬆ 19	⬆ 1		3.2		70.1	24.2	1.5
188	Morocco	1065	⬆ 47	⬆ 1	⬆ 1	⬆ 1				100.0
189	Optimists Prime	1057	⬇ 44	⬇ 16	⬇ 5	⬇ 1		100.0
190	Therian Primes	1007	⬆ 45	⬆ 11				14.6		52.4	33.0
191	alan145	937	⬇ 30	⬇ 3			99.5			0.5
192	TimE4This	876	⬇ 9	⬇ 8	⬇ 5					100.0
193	AWC	801	⬆ 42	⬇ 2					100.0
194	GIMPS Asturias	794	⬆ 1	⬇ 2					99.6	0.4
195	Weatopians	793	⬆ 2	⬇ 2					99.7	0.3
196	Sæve Nordic Prime	781	⬆ 2	⬇ 2					100.0
197	hreid	776	⬇ 15	⬇ 2					100.0
198	ISISS Valle Seriana	758	⬆ 2	⬆ 1					100.0
199	Join Us 😈	708	⬆ 10	⬆ 1			100.0
200	SGDynamo Dresden	580	⬆ 2	⬆ 2			100.0
201	PrimeObsession	539	⬆ 34	⬆ 2	⬆ 1					100.0
202	London Computation Club	478	⬆ 10	⬆ 2	⬆ 1					100.0
203	Team Dominik Radler	351	⬆ 4	⬆ 4	⬆ 1		100.0
204	/r/counting	337	⬆ 22	⬆ 4	⬆ 1
205	KnightLight	315	⬆ 9	⬆ 4	⬆ 1					99.3
206	Yurunago	276	⬆ 29	⬆ 4	⬆ 1					100.0
207	www.Adamek.biz	265	⬆ 10	⬆ 5	⬆ 1					100.0
208	Math Teachers of the World	259	⬆ 10	⬆ 5	⬆ 1				100.0
209	GIMPS Hams	253	⬆ 10	⬆ 5	⬆ 1			100.0
210	DividerHunt	221	⬆ 14	⬆ 6	⬆ 1		100.0
211	BrainStone	214	⬇ 39	⬇ 21	⬆ 1					100.0
212	Manri Costa Rica	213	⬇ 19	⬆ 5	⬆ 1					100.0
213	30thousandwon	193	⬆ 10	⬆ 6	⬆ 1					100.0
214	Team Bulgaria	166	⬇ 11	⬆ 1	⬆ 1						99.9
215	miiro	150	⬆ 20	⬆ 5	⬆ 1		100.0
216	GIMPS.Peace	122	⬆ 13	⬆ 5	⬆ 1		44.7	55.3
217	TeamUbuntu	121	⬆ 11	⬆ 5	⬆ 1					100.0
218	sannerud.com	108	⬆ 14	⬆ 8	⬆ 1		43.1				19.4	37.5
219	FourthFloorFourEyes	31	⬆ 11	⬆ 5	⬆ 1		100.0
220	PROMYS	23	⬆ 11	⬆ 5	⬆ 1						100.0
221	PARG team	21	⬆ 14	⬆ 6	⬆ 1						100.0
222	Unteranger Primelurche	3	⬇ 18	⬇ 11	⬆ 2					99.7
223	TeamEc	1	⬇ 17								100.0
224	yfinder	1	⬇ 2	⬇ 6	⬆ 1					100.0