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 2026-07-08 13:00 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	Slovakia	595895553	⬆ 1				0.1	98.5	0.1		1.3
2	GIMPS.Russia	353313813	⬇ 1				0.4		0.1		99.5
3	PrimeNet	149926972		⬆ 1			0.2	80.0	0.6	0.8	18.4
4	Ars Technica Team Prime Rib	139269688	⬆ 2	⬇ 1				99.2		0.8
5	POLAND	112065844	⬇ 1				0.9	95.2	0.5	0.1	3.3
6	-Too many Ones-	64811886	⬇ 1					77.5			22.5
7	Team#1	20745932	⬆ 7	⬆ 1			2.1	18.4	48.9	28.4	2.2
8	GIMPSChina	20036002		⬇ 1			58.9	23.9	4.4	0.7	12.0
9	GW's legions	13940698	⬆ 1					0.8	37.7	1.7	59.7
10	UCM-curtisc	11874052	⬆ 2						99.2	0.8
11	Team-Deutschland	11592953					2.6	56.9	0.9	0.1	39.3
12	Numberphile	10554636	⬆ 6	⬆ 4	⬆ 1		3.7	19.4	6.0	1.8	69.0
13	More Power!!!	10250731		⬇ 1	⬇ 1		17.3	69.2	2.8	2.4	8.4
14	TeamUK	6856483	⬆ 1				47.6	2.6	20.3	1.6	27.7	0.1
15	Porta Kruse	6364459	⬆ 1				2.0	0.5			91.2	6.2
16	One Man Team	6200726	⬇ 7	⬇ 3				99.1	0.9
17	GPU to 72	5064365					50.4	29.2	0.7	3.6	15.8
18	tsc	3434577	⬆ 2	⬆ 1			62.0	2.7	1.0	0.3	33.9
19	UW Eau Claire	3329607	⬆ 2	⬇ 1			90.3		7.1	2.6
20	UKRAINE	2610371	⬆ 2	⬆ 1	⬆ 1		8.3	5.9	75.2	10.5
21	Argentina	2563445	⬆ 26	⬇ 1	⬇ 1		92.1		7.9
22	Wikipedia	1925706	⬆ 1				57.6	34.6	4.7	2.1	0.8
23	GIMPS.Korea	1402964	⬆ 6	⬆ 1	⬆ 1		88.1	4.7	3.8	0.9	2.4
24	SpongeBob SquarePants	1354061	⬇ 5	⬇ 1	⬇ 1			30.2	62.1	7.6
25	GIMPS.Occitania	1201769	⬆ 3					4.4				95.6
26	Swedes Of Primes	1100641	⬆ 1				1.3	78.1	17.5	3.1
27	Dutch Power Cows	1074230	⬇ 3				42.4	10.7	1.5	2.4	43.0
28	MBAi.Cloud	834827	⬆ 2						99.9	0.1
29	404 - "Primes not Found"	583728	⬆ 19	⬆ 9	⬆ 1	⬆ 1	89.1		10.8	0.1
30	MATHSareREAL	578886	⬆ 1	⬇ 1	⬇ 1	⬇ 1	96.2		2.5	1.3
31	Buhr	505347	⬆ 3				51.8	4.9	16.6	5.2	21.6
32	GIMPS.USA	456452	⬇ 7	⬆ 10			31.8	46.8	15.0	3.8	2.2
33	citizenscience.ru	436082	⬇ 1	⬇ 1			86.6	2.3	6.2	1.0	3.5	0.4
34	Colorado School of Mines	390304	⬆ 5	⬆ 2			89.0		9.6	1.4
35	GIMPS.Japan	372371	⬇ 9	⬇ 2			34.1		33.2	11.0	21.6
36	Rechenkraft.net	372229	⬇ 1	⬇ 2			0.5	51.4	6.0	6.7	35.4
37	Terry Kim Team	366341	⬇ 1	⬇ 2			95.6		3.3	0.7
38	MOXA	356053	⬇ 5	⬇ 1			99.2		0.7	0.1
39	S485122	304401	⬇ 2		⬆ 1			95.1		4.9
40	unRAID	273322	⬇ 33	⬇ 10	⬇ 1			67.5	29.3	2.6	0.6
41	Smoke-it	253845	⬇ 3	⬇ 1			90.5	7.5	1.6
42	YahsTeam	247329	⬇ 1	⬇ 1			88.0		9.6	2.4
43	nranks	236635	⬆ 1				31.2	0.5	2.7	0.4	65.2
44	NanJing Tech	216356	⬆ 15	⬆ 1			24.2		72.4	3.4
45	GIMPS Team Philippines	203161	⬇ 3	⬆ 1			51.6		9.8	1.7	32.7
46	NerdyGirls	197616	⬇ 3	⬇ 2				43.0	4.9	52.2
47	Canada	185261	⬇ 2				7.6	1.6	66.1	24.7
48	Team Tartan	172736	⬇ 2						77.0	23.0
49	OverclockerAustralia	145703					60.3		14.4	20.7
50	GIMPS.NZ	134419					79.2	0.2	11.1	9.3	0.1
51	Team China	129614	⬆ 2						99.7	0.3
52	Unicamp	126871	⬆ 2				68.3		28.1	3.6
53	GIMPS.France	116369	⬆ 3				9.6	68.9	4.2	5.3	11.9
54	IOTA	113864	⬆ 14				95.6		3.0	1.5
55	AMD Users	95692	⬆ 8	⬆ 3	⬆ 1		48.7	0.6	9.9	40.3	0.4
56	SASAKI	94396	⬇ 1	⬇ 1	⬇ 1		100.0
57	UIUC	90429	⬆ 5	⬆ 3	⬆ 1				67.7	32.2
58	GIMPS.Portugal	89587	⬆ 47	⬇ 2	⬇ 1		51.1	46.4		2.5
59	VIPR	86033	⬆ 30	⬆ 15	⬆ 4		92.7		5.5	1.6
60	Wisconsin	81265	⬇ 2	⬇ 1			36.8		31.9	31.3
61	GIMPS China	81146	⬇ 10	⬇ 4	⬇ 2		85.2		8.6		5.8
62	SHADO	80629	⬇ 1	⬆ 1	⬇ 1				63.5	18.1	11.3	1.2
63	Wile E. Coyote	79115	⬆ 7	⬆ 2	⬇ 1				74.8	0.4	24.7
64	Net-Work	74459					5.7	2.2			83.7
65	Eratosthenes Sieve	72801		⬆ 2			0.8		95.2	3.9
66	randomteam	71704	⬇ 26	⬇ 5							100.0
67	Cap'n Entropy's Cavalcade of Wonderment	67164	⬇ 7	⬇ 1	⬆ 1		69.1	7.9	19.8	3.2
68	Esperanto	66859	⬇ 2		⬆ 1			25.7	4.8	69.3	0.2
69	S147127	66151	⬆ 5	⬆ 1	⬆ 1		31.9		21.9	46.2
70	BitMEX Research	65060	⬇ 18	⬇ 8	⬇ 3				95.1	4.9
71	ParadoxZ Commando	62976		⬆ 1	⬆ 1				72.7	27.3
72	Team Israel	62097	⬆ 1	⬇ 1	⬇ 1		97.0		2.6	0.4
73	Team_Italia	56783	⬇ 1	⬆ 2	⬆ 1		3.3	0.6	63.1	25.7	3.3	2.7
74	AJ	55549	⬇ 5	⬇ 5	⬇ 1				74.4	25.6
75	EgyptianPolymaths	54366	⬇ 18	⬇ 2				79.4
76	Hungary	52997	⬇ 9						4.6	1.4	93.9
77	Brno University of Technology	46256	⬇ 2					4.7	75.0	20.3
78	ComputerraRU	44582	⬇ 1				24.0		72.3	3.7
79	Team Belgium	38959	⬇ 1	⬆ 2	⬆ 1		1.4	2.5	32.6	26.1	37.5
80	GIMPS.NEO	38064	⬇ 4	⬇ 1	⬇ 1				79.9	20.1
81	Turku	36285	⬆ 2	⬆ 1					100.0
82	Team Viet Nam	36031	⬇ 2	⬇ 2			33.9		36.9	29.2
83	huskers-gimps	35940	⬆ 2	⬆ 1					74.5	25.5
84	HardOCP	34564	⬇ 3	⬇ 1					70.1	29.9
85	Debian	33368	⬇ 3	⬆ 1	⬆ 2				98.2	1.8
86	Hermessz	33181	⬆ 1	⬆ 2			64.5		35.5
87	Team H	32956	⬇ 3	⬇ 2	⬇ 2	⬆ 1	13.3		86.1	0.6
88	ᕙ(⇀‸↼‶)ᕗ	32328	⬆ 3	⬇ 1		⬇ 1	0.7		98.9	0.4
89	baraCUDA	29906	⬆ 133						100.0
90	Small-Team-2000	28309							5.6	94.4
91	The Fellowship of Infinity	27356	⬆ 3	⬆ 2	⬆ 1	⬆ 1			99.5	0.5
92	Channel 4	27356	⬆ 1	⬇ 1	⬇ 1	⬇ 1			81.6	18.4
93	NUST	27355	⬆ 15	⬆ 14	⬆ 12	⬆ 3	50.6	44.8	3.1	1.6
94	MurrayInfoSys	26836	⬆ 3		⬇ 1	⬇ 1			67.0	32.9
95	Costa Rica	26494			⬇ 1	⬇ 1			77.7	22.0
96	Aiblspitz	25989	⬆ 17	⬆ 1		⬇ 1	0.1	86.4	3.0	10.4
97	socal_prime	25012	⬇ 9	⬇ 5	⬇ 2				75.2	24.6	0.1
98	Georgia Tech	20319	⬆ 11	⬇ 2	⬇ 1				100.0
99	A Single Engineer	18488	⬆ 1		⬇ 1				75.8	24.2
100	LimePrime	18290	⬇ 4	⬆ 5				7.7	82.1	10.1
101	Team Retired	18012	⬇ 3	⬇ 3	⬇ 2				30.4	11.8
102	GIMPS Romania	17357	⬆ 36	⬇ 1	⬇ 1		74.1		22.9	3.0
103	Com Systems (RU)	16859	⬆ 14	⬆ 1	⬇ 1				69.6	30.4
104	PrimitiveRootsCircle	16793	⬇ 5	⬇ 1	⬇ 1		14.5		51.9	30.8	2.9
105	SpartaAlumni	15994	⬇ 4	⬇ 5	⬇ 1				73.6	26.4
106	MES-Team	13998	⬇ 14	⬇ 4			72.2	6.6		21.3
107	TurkishMath	13669	⬆ 18	⬆ 3					94.3	5.7
108	Spain	13473	⬇ 4	⬇ 2					69.9	30.1
109	RobotechResearch	13385	⬆ 17	⬆ 4					47.8	52.2
110	moeses	13374	⬆ 4	⬇ 1					99.0	0.9
111	Quantus	12170		⬆ 1			10.0		13.0	25.1		51.9
112	Ozzie Prime	12077	⬇ 10	⬇ 4					39.3	15.5		45.3
113	Nerdfighters for Mersenne Primes	11224	⬇ 6	⬇ 2					91.4	8.6
114	Portland State University	11111	⬇ 4	⬆ 5	⬆ 6			40.9	44.6	14.5
115	FREE ROBUX	10852	⬆ 6	⬆ 2					100.0
116	Team Slovenia	10717		⬇ 2					65.4	34.6
117	Royal Military College of Canada	10691	⬆ 5	⬆ 1			89.7		7.9	2.4
118	Team Finland	10532	⬇ 6	⬇ 3			1.5		95.9		2.5
119	University of Waterloo	10493	⬆ 18	⬆ 5					94.8	5.2
120	SETI.Germany	9358	⬇ 14	⬇ 4	⬇ 6			10.1		89.9
121	Syntony	9286	⬆ 3							100.0
122	LTT fans	9056	⬇ 43	⬆ 1			92.5				7.5
123	Shaffer's Studio	8795	⬆ 5	⬆ 4					88.7	11.1
124	JiBoTeam	8639	⬆ 3	⬆ 1	⬆ 1	⬆ 1				100.0
125	Granada	8622	⬇ 2	⬇ 5	⬇ 1	⬇ 1	24.2		27.4	47.6
126	math.auth.gr	8551	⬆ 13	⬆ 5					100.0
127	Pavlicin	8407	⬆ 95	⬆ 8			79.7	0.1	20.2
128	Mensa	8400	⬇ 13	⬇ 2					84.3	15.7
129	FreeBSD	8386	⬆ 2	⬆ 1					75.9	24.1
130	Die Zeitfinder	7926		⬇ 1					90.2	9.8
131	Abacus	7926	⬆ 2	⬆ 3	⬆ 2				98.9	1.0
132	The_Dude_Abides	7691	⬆ 21	⬆ 21	⬆ 17	⬆ 2	4.0		32.5	49.6	0.7
133	Server66	7649	⬆ 3	⬆ 25	⬇ 1		100.0
134	Triangle	7142		⬇ 6	⬇ 3	⬇ 2			98.7	1.3
135	GIMPS.Taiwan	7047	⬇ 15	⬇ 13	⬇ 1				81.2	18.1	0.1
136	Prime Rib	6586	⬆ 4	⬇ 4					96.2	3.7
137	FactorMania	6572	⬆ 18	⬇ 1				56.9			43.1
138	Arpan Sen Labs	6425	⬆ 36	⬆ 7					57.6	42.4
139	Team Norway	6352	⬇ 36	⬇ 6	⬇ 4		74.0			8.0	17.6
140	Team Christensen	6029	⬆ 4			⬆ 1				100.0
141	irowiki	5946		⬇ 3	⬇ 2	⬇ 1				100.0
142	México mágico	5564	⬆ 15	⬇ 1	⬇ 1				85.4	14.6
143	Morocco	5425	⬆ 45	⬆ 11	⬆ 1	⬆ 1			60.3	39.7
144	Brasil	5301	⬇ 2	⬇ 5	⬇ 1	⬆ 1			74.0	25.9
145	KnightLight	5068	⬆ 2	⬆ 2		⬆ 1				100.0
146	Elisabeth-von-Thadden-Schule	5022	⬇ 1	⬇ 4	⬇ 4	⬇ 3			46.1	53.8
147	nmbarek_team	4943	⬆ 3	⬆ 1	⬇ 1				100.0
148	DePaul MAT 141	4934	⬆ 74	⬆ 11	⬇ 1				99.6	0.4
149	Crunching@EVGA	4888	⬆ 3	⬆ 1	⬇ 1				99.7	0.3
150	Korea.Prime	4709	⬆ 11	⬆ 1		⬆ 1			66.8	33.2
151	YESHUA IS THE MESSIAH	4648	⬆ 28	⬆ 6	⬆ 1	⬆ 1			99.2	0.8
152	Hong Kong GIMP	4464	⬇ 1	⬇ 9	⬇ 1	⬇ 2			70.4	29.6
153	teamMALI	4158	⬇ 5	⬇ 4	⬆ 1				75.7	24.3
154	Hyperion	3983	⬇ 25	⬇ 10	⬇ 1					14.1
155	Noam Karni Team	3963	⬆ 4						79.7	20.3
156	Phi Kappa Theta	3759	⬆ 9	⬆ 5	⬆ 4				66.1	33.9
157	Politeknik Banting, Selangor	3101	⬇ 38	⬇ 11			65.4		25.5	9.1
158	Olympic College	3075		⬇ 2						100.0
159	Team_Brazil	2999	⬆ 4	⬆ 6			83.1	0.2		16.7
160	GIMPS.Hong Kong	2627		⬆ 6	⬆ 1		2.1		61.4	36.5
161	Pi Rho	2499	⬆ 7	⬆ 6	⬆ 2				67.1	32.9
162	GIMPSMalaysia	2394	⬆ 7	⬆ 6	⬆ 3				66.8	33.2
163	zeit	2382	⬇ 7	⬇ 1	⬇ 1		11.5			88.5
164	CZAsTc	2288	⬆ 23	⬆ 15	⬆ 2	⬆ 1			99.5	0.4
165	Furry Primes	2256	⬇ 16	⬇ 1	⬇ 1	⬇ 1	77.2			22.8
166	Kabylie	2209	⬇ 4	⬇ 3	⬆ 1		17.3	1.9	35.1	45.6
167	Team Austria	2199	⬇ 81	⬇ 15	⬆ 1		12.8	9.5	77.7
168	GIMPS_KS	2199	⬆ 4	⬆ 2	⬆ 1				36.5	62.0	1.4
169	VRS_SE	2102	⬆ 1		⬆ 1				75.0	25.0
170	The Prime Pioneers	1919	⬆ 6	⬆ 2	⬆ 1			100.0
171	The Pensis	1869	⬆ 6	⬆ 2	⬆ 1					100.0
172	San Francisco	1586	⬆ 9	⬆ 2	⬆ 1				100.0
173	hreid	1575	⬆ 25	⬆ 2	⬆ 1				100.0
174	cr_colorado	1549	⬆ 10	⬆ 2	⬆ 1					100.0
175	Obsidian	1542	⬇ 2	⬆ 2	⬆ 2					100.0
176	I Love Canadian Natural Resources	1514	⬇ 9	⬆ 2	⬆ 2					100.0
177	3DCenter.org	1194	⬇ 13	⬆ 3	⬆ 2						100.0
178	Amserver	1066	⬆ 44	⬆ 42	⬆ 2		100.0
179	Join Us 😈	1060	⬆ 21	⬆ 4	⬆ 2		66.8			33.2
180	youngfun429	1037	⬇ 34	⬆ 2	⬆ 2				75.3	24.7
181	TunisianTeam	1031	⬆ 2	⬆ 3	⬆ 2				75.0	25.0
182	Therian Primes	1007	⬆ 10	⬆ 3	⬆ 2			14.6		52.4	33.0
183	Team Bulgaria	905	⬆ 31	⬆ 34	⬆ 32				95.0		5.0
184	Czech National Team	903	⬆ 5	⬆ 2	⬆ 1		4.1		91.8	0.8	2.0
185	RafaÅ‚ HacuÅ›	860	⬆ 37	⬆ 3	⬆ 1				100.0
186	AWC	801	⬆ 9	⬆ 3	⬆ 1				100.0
187	GIMPS Asturias	794	⬆ 9	⬆ 4	⬆ 2				99.6	0.4
188	F=dp/dt	794	⬇ 8	⬆ 2					100.0
189	Weatopians	793	⬆ 8	⬆ 3	⬆ 1				99.7	0.3
190	Team Splunk	771	⬇ 55	⬇ 53	⬇ 14				100.0
191	TimE4This	626	⬆ 2	⬇ 4						100.0
192	SGDynamo Dresden	595	⬆ 9	⬆ 2			100.0
193	PARG team	563	⬆ 27	⬆ 7						96.2	3.8
194	PrimeObsession	539	⬆ 8	⬆ 1						100.0
195	GIMPS.Romania	422	⬆ 27	⬆ 2					100.0
196	His Dark Materials	319	⬇ 5	⬆ 2	⬆ 1						99.8
197	Yurunago	276	⬆ 9	⬆ 5	⬆ 1					100.0
198	Vegan	275	⬆ 9	⬆ 6	⬆ 1					100.0
199	Byberg Nordic Prime	265	⬇ 9	⬆ 6	⬆ 1					100.0
200	FDY	265	⬆ 22	⬆ 6	⬆ 1					100.0
201	GIMPS_IOM	258	⬇ 23	⬇ 8	⬇ 5		100.0
202	Subprime Searches	256	⬇ 27	⬆ 6						100.0
203	GIMPS Hams	253	⬆ 7	⬆ 6				100.0
204	WSU Cougars	247	⬇ 38	⬇ 23						100.0
205	miiro	240	⬆ 10	⬆ 5	⬆ 1		100.0
206	Zorin OS Crew	237	⬇ 20	⬇ 10	⬆ 1					100.0
207	DividerHunt	221	⬆ 4	⬆ 4	⬆ 1		100.0
208	Team Dominik Radler	214	⬇ 4	⬇ 5	⬇ 3		100.0
209	Manri Costa Rica	213	⬆ 3	⬆ 3						100.0
210	/r/counting	184	⬇ 5	⬆ 3
211	alan145	180	⬇ 12	⬇ 10			100.0
212	GIMPS.Peace	122	⬆ 4	⬆ 2			44.7	55.3
213	TeamUbuntu	121	⬆ 4	⬆ 2						100.0
214	sannerud.com	108	⬆ 4	⬆ 2			43.1				19.4	37.5
215	PROMYS	23	⬆ 4	⬆ 3	⬆ 1						100.0
216	yfinder	1	⬆ 5	⬆ 3	⬆ 1					100.0