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 2026-06-03 16:00 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	710999226	⬆ 1	⬆ 1			0.1	98.8	0.1		1.0
2	GIMPS.Russia	592170871	⬇ 1	⬇ 1			0.3		0.1		99.6
3	Ars Technica Team Prime Rib	130674869	⬆ 3	⬆ 1	⬆ 1	⬆ 1		99.2		0.8
4	PrimeNet	122295847		⬆ 1	⬆ 1	⬆ 1	0.2	98.1	0.7	1.0
5	POLAND	111667947	⬇ 2	⬇ 2	⬇ 2	⬇ 2	0.9	95.6	0.5	0.1	2.9
6	-Too many Ones-	32422109	⬇ 1				0.2	53.3			46.5
7	GIMPSChina	21677279	⬆ 1	⬆ 1			64.5	21.5	4.1	0.6	9.3
8	szerverem.hu	18311169	⬆ 7	⬆ 4			2.3	19.9	55.4	19.9	2.5
9	GW's legions	13752650	⬆ 2	⬆ 1				0.8	36.8	1.6	60.7
10	UCM-curtisc	11749118	⬆ 2	⬆ 3					99.3	0.7
11	Team-Deutschland	11348511	⬆ 2				2.6	54.4	0.8	0.1	41.9
12	More Power!!!	10864808	⬇ 3	⬆ 2			17.0	70.4	2.6	2.1	7.9
13	One Man Team	8735587	⬇ 3	⬇ 4				99.3	0.7
14	TeamUK	7113870		⬆ 1			49.1	2.8	19.1	1.5	27.4	0.1
15	Porta Kruse	6389311	⬆ 1	⬆ 1			2.0	0.5			91.2	6.1
16	GPU to 72	4697195	⬆ 1	⬆ 1			51.4	27.8	0.4	4.0	16.2
17	Numberphile	4158801	⬆ 2	⬆ 1			12.8	34.6	15.2	4.4	32.8
18	UW Eau Claire	3219329	⬆ 10	⬆ 1			89.9		7.3	2.7
19	tsc	2844965	⬆ 1	⬆ 1			68.8	3.5	1.1	0.4	26.2
20	Argentina	2382712	⬆ 137	⬆ 1			92.0		8.0
21	UKRAINE	2371267		⬆ 2			14.0	8.0	65.5	12.5
22	Wikipedia	1936306		⬆ 2	⬆ 1		57.8	34.4	4.6	2.1	0.8
23	SpongeBob SquarePants	1903905	⬇ 5	⬇ 1	⬇ 1			30.5	58.6	11.0
24	Swedes Of Primes	1205118		⬆ 4			0.6	80.0	16.5	3.0
25	GIMPS.Occitania	1203606	⬆ 1	⬆ 4				4.4				95.6
26	GIMPS.Korea	1182226	⬆ 5	⬆ 4			88.3	4.8	4.3	0.9	1.6
27	Dutch Power Cows	1157281	⬇ 4	⬇ 2			42.9	12.4	1.9	2.2	40.6
28	MBAi.Cloud	842388	⬆ 1	⬆ 3					99.9	0.1
29	MATHSareREAL	578886	⬆ 3	⬆ 3	⬆ 1		96.2		2.5	1.3
30	unRAID	564572	⬇ 23	⬇ 23	⬇ 1			82.3	16.1	1.3	0.4
31	citizenscience.ru	491614	⬆ 4	⬆ 2			87.9	3.0	4.8	0.8	3.1	0.3
32	Buhr	478037	⬆ 4	⬆ 2			54.3	4.5	17.3	5.4	18.4
33	GIMPS.Japan	407822	⬇ 6	⬇ 6			23.8		30.4	8.8	36.9
34	Rechenkraft.net	392575	⬇ 1	⬆ 3			1.4	53.1	6.3	6.1	33.1
35	Terry Kim Team	378414	⬇ 1	⬆ 1			96.0		3.0	0.7
36	MOXA	355894	⬇ 6	⬇ 1			98.9		0.9	0.2
37	Colorado School of Mines	352581	⬆ 10	⬆ 2			92.7		5.9	1.3
38	S485122	305224	⬇ 1					95.0		5.0
39	404 - "Primes not Found"	285289	⬆ 6	⬆ 2			80.6		19.2	0.2
40	Smoke-it	265516	⬇ 2				90.5	7.1	1.8
41	GIMPS.USA	237546	⬇ 16	⬇ 15	⬆ 1		61.2	3.5	25.3	7.5	2.0
42	nranks	237091	⬇ 2	⬆ 4	⬇ 1		31.0	0.5	3.0	0.4	65.1
43	YahsTeam	236128	⬇ 4	⬇ 1			87.9		9.7	2.4
44	NerdyGirls	199873	⬇ 2					42.5	6.9	50.6
45	GIMPS Team Philippines	197186	⬇ 2				55.6		8.4	1.6	30.6
46	NanJing Tech	192434	⬆ 46	⬆ 4			27.0		69.2	3.8
47	Canada	184256	⬇ 3		⬆ 1		2.1	2.1	69.4	26.5
48	Team Tartan	180777	⬇ 2		⬇ 1				76.8	23.2
49	OverclockerAustralia	150045					58.5		18.2	19.8
50	GIMPS.NZ	133864	⬆ 2	⬆ 1			78.9		11.1	10.0
51	Team China	126994		⬆ 1					99.7	0.3
52	Unicamp	125514	⬆ 1	⬆ 1			69.0		26.4	4.6
53	GIMPS.France	119242	⬆ 5	⬆ 1			9.4	67.2	4.7	6.9	11.6
54	SASAKI	104035		⬆ 2	⬆ 1		100.0
55	IOTA	102848	⬆ 25	⬆ 6	⬆ 2		95.1		3.3	1.6
56	randomteam	99750	⬇ 15	⬇ 13	⬇ 2						100.0
57	GIMPS.Portugal	99724	⬆ 53	⬆ 15	⬆ 1		43.2	52.1		4.7
58	GIMPS China	99613	⬇ 10	⬇ 3	⬇ 2		88.8		6.2		4.8
59	AMD Users	92088	⬆ 6	⬆ 1	⬆ 1		50.7	0.6	10.3	38.0	0.4
60	Wisconsin	88544	⬇ 3	⬇ 2	⬆ 1		40.6		31.0	28.3
61	UIUC	88108		⬆ 1	⬆ 1	⬆ 1			69.3	30.7
62	BitMEX Research	87417	⬇ 12	⬇ 5	⬇ 3	⬇ 1			96.4	3.6
63	SHADO	79504	⬇ 3	⬆ 2	⬆ 2				62.3	18.7	11.4	1.5
64	Net-Work	76852	⬇ 2				5.1	1.9			85.8
65	Cap'n Entropy's Cavalcade of Wonderment	76627	⬇ 9	⬇ 6	⬇ 2		73.3	6.9	17.4	2.4
66	Wile E. Coyote	74198	⬆ 7	⬆ 1	⬆ 1				76.0	0.4	23.5
67	Eratosthenes Sieve	73921	⬇ 4	⬇ 1	⬇ 1		0.7		95.3	3.9
68	Esperanto	67610	⬇ 4		⬆ 1			25.7	4.7	69.3	0.2
69	AJ	65915	⬇ 2		⬆ 1				75.8	24.2
70	ParadoxZ Commando	63555	⬇ 1		⬆ 2				74.5	25.5
71	Team Israel	62527	⬇ 5	⬆ 2	⬆ 2	⬆ 2	97.0		2.5	0.4
72	S147127	62445	⬆ 3	⬇ 1	⬇ 1		30.8		18.2	51.0
73	EgyptianPolymaths	61938	⬇ 18	⬇ 10	⬇ 5	⬇ 2		69.7			15.8
74	VIPR	54077	⬆ 23	⬆ 12	⬆ 2	⬆ 2	86.9		8.8	4.0
75	Team_Italia	53723	⬇ 5	⬇ 1			3.2		65.2	25.2	2.3	3.4
76	Hungary	53328	⬇ 17	⬇ 1	⬇ 2	⬇ 2			4.5	1.9	93.3
77	ComputerraRU	48328		⬇ 1	⬆ 1		21.3		67.3	11.4
78	Brno University of Technology	47716	⬇ 6		⬇ 1			9.4	72.5	18.1
79	GIMPS.NEO	45358	⬇ 11	⬇ 2					78.9	21.1
80	Team Belgium	41672	⬇ 6	⬇ 1			1.3	3.6	32.4	20.6	42.2
81	Team Viet Nam	41552	⬇ 3	⬇ 1			29.4		32.0	27.4	11.2
82	HardOCP	36900		⬇ 1	⬆ 2				72.0	28.0
83	Turku	36285	⬆ 7	⬇ 1	⬇ 1				100.0
84	huskers-gimps	35920	⬆ 1	⬆ 1	⬇ 1				74.5	25.5
85	Team H	33695	⬇ 4	⬇ 1			13.1		86.3	0.6
86	Debian	33368		⬇ 3					98.2	1.8
87	Hermessz	32336	⬇ 4		⬆ 1		63.6		36.4
88	ᕙ(⇀‸↼‶)ᕗ	31551	⬆ 6	⬆ 1	⬇ 1		0.7		98.9	0.4
89	baraCUDA	29906	⬆ 138	⬆ 134					100.0
90	Small-Team-2000	28910	⬆ 1						8.1	91.9
91	Channel 4	26555	⬆ 4	⬆ 1	⬆ 2				81.1	18.9
92	socal_prime	26507	⬇ 5	⬇ 1	⬇ 1				73.7	26.1	0.1
93	The Fellowship of Infinity	25774	⬆ 3	⬆ 1	⬇ 1				99.5	0.5
94	MurrayInfoSys	25155	⬆ 9	⬆ 2					68.1	31.8
95	Costa Rica	23902	⬇ 2						75.3	24.4
96	LTT fans	22365	⬇ 20	⬇ 8			37.5				62.5
97	Georgia Tech	20319	⬇ 26	⬆ 3					100.0
98	Aiblspitz	19180	⬆ 35	⬆ 7	⬆ 3		0.2	79.0	8.2	12.6
99	Team Retired	18781	⬇ 1						29.2	11.3
100	A Single Engineer	18488	⬆ 1	⬆ 1					75.8	24.2
101	PrimitiveRootsCircle	17635	⬇ 1	⬆ 1	⬆ 3		17.1		53.9	26.3	2.7
102	SpartaAlumni	17506	⬆ 2	⬇ 5	⬇ 4	⬆ 1			71.6	28.4
103	GIMPS Romania	17357	⬆ 42			⬆ 1	74.1		22.9	3.0
104	MES-Team	17318	⬇ 20	⬇ 11	⬇ 2	⬇ 2	67.8	8.2		24.0
105	LimePrime	15012	⬇ 17	⬇ 1				9.4	78.4	12.2
106	Com Systems (RU)	15007	⬆ 20	⬆ 5	⬆ 2				67.7	32.3
107	Spain	14509	⬆ 2	⬆ 2	⬇ 1				70.3	29.7
108	NUST	14223	⬆ 8		⬇ 1		16.4	74.6	5.9	3.0
109	Ozzie Prime	13653	⬇ 10	⬇ 2				2.5	40.4	15.8		41.3
110	moeses	12581	⬆ 4	⬆ 3					99.0	1.0
111	Nerdfighters for Mersenne Primes	12206	⬇ 3	⬆ 3					90.4	9.6
112	Quantus	12170	⬇ 6	⬆ 3			10.0		13.0	25.1		51.9
113	RobotechResearch	12070	⬆ 21	⬆ 5	⬆ 2	⬆ 2			46.5	53.5
114	TurkishMath	11994	⬆ 24	⬆ 8		⬇ 1			87.1	12.9
115	Team Slovenia	11901	⬇ 3	⬆ 1	⬆ 1	⬇ 1			65.5	34.5
116	Team Finland	11275	⬇ 27	⬇ 6	⬇ 3	⬆ 1	1.1		96.5		2.4
117	SETI.Germany	11194	⬇ 6	⬇ 11	⬆ 1	⬆ 1		8.5	14.2	77.4
118	FREE ROBUX	10852	⬆ 3	⬆ 1	⬆ 1	⬆ 1			100.0
119	Royal Military College of Canada	10691	⬆ 3	⬆ 2	⬆ 1	⬆ 1	89.7		7.9	2.4
120	Portland State University	10542	⬇ 18	⬇ 8	⬇ 3	⬇ 4		43.2	39.0	17.7
121	Granada	10174	⬇ 6	⬇ 1			25.9		23.2	50.2
122	Syntony	9641	⬆ 5	⬆ 4						100.0
123	GIMPS.Taiwan	9377	⬇ 10						85.8	13.6	0.1
124	JiBoTeam	9242	⬆ 8	⬆ 3	⬆ 3					100.0
125	Mensa	8910	⬇ 7						88.2	11.8
126	Shaffer's Studio	8812	⬆ 4	⬆ 2					88.4	11.5
127	University of Waterloo	8753	⬆ 10	⬆ 8	⬆ 2	⬆ 1			100.0
128	Die Zeitfinder	8635	⬆ 1	⬆ 2		⬇ 1			91.0	9.0
129	Team Norway	8126	⬇ 22	⬇ 12	⬆ 1		77.2			6.3	16.2
130	Triangle	7874	⬆ 1	⬇ 1	⬆ 2				98.9	1.1
131	math.auth.gr	7704	⬆ 55	⬆ 1	⬆ 2				100.0
132	Team Splunk	7605	⬆ 3	⬆ 1	⬆ 2			28.1	71.9
133	FreeBSD	7519	⬇ 10	⬆ 3	⬆ 2				73.6	26.4
134	Prime Rib	7361	⬆ 7	⬆ 6	⬆ 2				96.7	3.3
135	Abacus	7130	⬇ 16	⬇ 4	⬇ 4	⬆ 1			98.9	1.0
136	Team Austria	6963	⬇ 57	⬇ 38	⬇ 12	⬇ 1	72.5	3.0	24.5
137	Pavlicin	6707	⬆ 90	⬆ 86	⬆ 4		99.9	0.1
138	FactorMania	6572	⬆ 18	⬆ 7	⬆ 2			56.9			43.1
139	irowiki	6539	⬇ 3							100.0
140	Brasil	6268		⬇ 2	⬇ 3				75.1	24.8
141	Team Christensen	6134	⬆ 3	⬆ 2	⬆ 1					100.0
142	México mágico	5803	⬆ 16	⬆ 15	⬆ 1				81.9	18.1
143	Hyperion	5594	⬇ 23	⬇ 9	⬇ 5					10.2
144	Elisabeth-von-Thadden-Schule	5505	⬇ 1						42.1	57.9
145	Hong Kong GIMP	5486	⬆ 5	⬆ 8					71.5	28.5
146	Arpan Sen Labs	5354	⬆ 55	⬆ 14	⬆ 2	⬆ 2			54.4	45.6
147	Politeknik Banting, Selangor	5263	⬇ 30	⬇ 23	⬇ 1	⬇ 1	79.6		15.0	5.4
148	KnightLight	5257	⬆ 59	⬇ 2	⬇ 1	⬇ 1				100.0
149	nmbarek_team	4951	⬇ 1						99.8	0.2
150	teamMALI	4927	⬇ 1						79.5	20.5
151	Crunching@EVGA	4888	⬆ 8						99.7	0.3
152	Korea.Prime	4702	⬆ 9	⬆ 3					66.8	33.1
153	The_Dude_Abides	4099	⬇ 6	⬆ 3	⬆ 1		10.5			72.6
154	Morocco	4081	⬆ 36	⬆ 14	⬆ 9	⬆ 6			60.6	39.4
155	Noam Karni Team	3962	⬆ 5	⬆ 4		⬇ 1			79.7	20.3
156	Olympic College	3828	⬇ 3	⬆ 2	⬆ 1	⬇ 1				100.0
157	YESHUA IS THE MESSIAH	3801	⬆ 70	⬆ 7	⬆ 2				99.1	0.9
158	Server66	3762	⬇ 34	⬇ 21		⬇ 2	100.0
159	DePaul MAT 141	3352	⬆ 68	⬆ 64	⬆ 8	⬇ 1			99.6	0.4
160	MES22-Team	3277	⬇ 35	⬇ 12	⬆ 2	⬇ 1	100.0
161	Furry Primes	3166	⬇ 22	⬇ 7	⬇ 1		83.8			16.2
162	Phi Kappa Theta	3139	⬆ 3	⬇ 1	⬇ 6				52.0	48.0
163	zeit	3091	⬇ 12		⬇ 2		7.9			92.1
164	Kabylie	3067	⬇ 10	⬆ 1			14.4	1.9	50.8	32.9
165	Team_Brazil	2999	⬇ 1	⬆ 1			83.1	0.2		16.7
166	GIMPS.Hong Kong	2871	⬇ 3	⬇ 4			2.7		56.2	41.1
167	SU Prime Pirates	2844	⬇ 25	⬇ 26	⬇ 14				83.5	16.5
168	Pi Rho	2499	⬇ 1	⬇ 1					67.1	32.9
169	GIMPSMalaysia	2394							66.8	33.2
170	VRS_SE	2364							66.7	33.3
171	GIMPS_KS	2199	⬆ 2	⬆ 1					36.5	62.0	1.4
172	The Prime Pioneers	1919	⬇ 4	⬆ 3				100.0
173	The Pensis	1869	⬆ 2	⬆ 3						100.0
174	San Francisco	1586	⬆ 7	⬆ 5	⬆ 2				100.0
175	hreid	1575	⬆ 22	⬆ 5	⬆ 2				100.0
176	cr_colorado	1549	⬆ 6	⬆ 6	⬆ 3	⬆ 1				100.0
177	Obsidian	1542		⬇ 3	⬆ 3	⬆ 1				100.0
178	3DCenter.org	1540	⬇ 23	⬇ 7	⬇ 3	⬇ 2					100.0
179	I Love Canadian Natural Resources	1514	⬇ 13	⬇ 6	⬆ 2					100.0
180	CZAsTc	1448	⬆ 4	⬆ 4	⬆ 2	⬆ 1			99.5	0.5
181	WSU Cougars	1390	⬇ 35	⬆ 4	⬆ 2	⬆ 1			55.3	44.6
182	youngfun429	1281	⬇ 54	⬇ 35	⬇ 8	⬇ 2			61.0	39.0
183	Join Us 😈	1060	⬆ 16	⬆ 13	⬆ 3		66.8			33.2
184	TunisianTeam	1031	⬇ 13	⬆ 2	⬆ 3				75.0	25.0
185	Therian Primes	1007	⬆ 6	⬆ 2	⬆ 3			14.6		52.4	33.0
186	Czech National Team	903	⬆ 3	⬆ 3	⬆ 3	⬆ 1	4.1		91.8	0.8	2.0
187	GIMPS_IOM	890	⬇ 8	⬇ 6	⬇ 2	⬇ 1	100.0
188	TimE4This	876	⬇ 1	⬆ 2	⬆ 2					100.0
189	RafaÅ‚ HacuÅ›	860	⬆ 38	⬆ 34	⬆ 2				100.0
190	AWC	801	⬆ 3	⬆ 1	⬆ 2				100.0
191	F=dp/dt	799	⬇ 15	⬇ 13	⬆ 2				99.3	0.7
192	GIMPS Asturias	794	⬆ 2		⬆ 2				99.6	0.4
193	Weatopians	793	⬆ 2		⬆ 2				99.7	0.3
194	Subprime Searches	644	⬇ 20	⬇ 17	⬇ 10		60.3			39.7
195	SGDynamo Dresden	595	⬆ 5	⬆ 3	⬆ 3		100.0
196	PrimeObsession	539	⬆ 6	⬆ 3	⬆ 3					100.0
197	Zorin OS Crew	469	⬇ 19	⬇ 14	⬇ 1					100.0
198	His Dark Materials	430	⬇ 13	⬇ 10	⬇ 1						99.8
199	GIMPS.Romania	422	⬆ 28	⬆ 24	⬆ 1				100.0
200	alan145	390	⬇ 12		⬆ 1		100.0
201	Optimists Prime	365	⬇ 18	⬇ 4	⬆ 1			100.0
202	PARG team	298	⬆ 22	⬆ 18	⬆ 1					92.8	7.2
203	Yurunago	276	⬆ 5		⬆ 1					100.0
204	Team Dominik Radler	275	⬆ 1	⬇ 2	⬆ 1		100.0
205	Vegan	275	⬆ 22	⬇ 1	⬆ 1					100.0
206	Byberg Nordic Prime	265	⬇ 10	⬇ 1	⬆ 1					100.0
207	FDY	265	⬆ 20	⬇ 1	⬆ 1					100.0
208	www.Adamek.biz	265	⬆ 1	⬇ 1	⬆ 1					100.0
209	GIMPS Hams	253	⬆ 3		⬆ 2			100.0
210	miiro	240	⬆ 7	⬆ 4	⬆ 6		100.0
211	DividerHunt	221	⬆ 2	⬇ 1	⬆ 1		100.0
212	Manri Costa Rica	213	⬆ 2	⬇ 1	⬆ 1					100.0
213	/r/counting	184	⬇ 7		⬆ 2
214	GIMPS.Peace	122	⬆ 4	⬆ 2	⬆ 3		44.7	55.3
215	TeamUbuntu	121	⬆ 4	⬆ 2	⬆ 3					100.0
216	sannerud.com	108	⬆ 4	⬆ 2	⬆ 3		43.1				19.4	37.5
217	Team Bulgaria	74	⬇ 1	⬇ 2	⬆ 3						100.0
218	PROMYS	23	⬆ 5	⬆ 1	⬆ 3						100.0
219	yfinder	1	⬆ 6	⬆ 3	⬆ 3					100.0