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 2026-03-07 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	942955345					0.3		0.1		99.6
2	Slovakia	765886601	⬆ 1				0.1	97.8	0.1		2.0
3	POLAND	403058698	⬆ 1				0.3	98.9	0.2		0.7
4	PrimeNet	337609757	⬇ 2					97.4	0.3	0.4	1.9
5	-Too many Ones-	189765935					0.2	92.1			7.6
6	Ars Technica Team Prime Rib	65773446		⬆ 1				98.5	0.1	1.4	0.1
7	unRAID	33458502		⬇ 1				99.6	0.4
8	GIMPSChina	22602097					74.6	17.5	3.9	0.6	3.2
9	More Power!!!	14657502	⬆ 1	⬆ 1	⬆ 1		13.7	56.5	1.8	0.8	27.2
10	One Man Team	13949047	⬇ 1	⬇ 1	⬇ 1			99.4	0.6
11	GW's legions	12757536					0.1	0.9	30.6	0.9	67.5
12	UCM-curtisc	11876185	⬆ 1						99.3	0.7
13	Team-Deutschland	11210093	⬇ 1				3.8	9.5	0.4	0.1	86.1
14	TeamUK	7487342					41.0	5.0	18.3	1.3	34.2	0.1
15	szerverem.hu	7300737	⬆ 222				5.8	36.9	45.9	5.1	6.2
16	Porta Kruse	6429709	⬆ 19				2.0	0.2		0.1	91.5	6.1
17	GPU to 72	4609975	⬇ 2				56.1	25.3	0.5	3.9	14.1
18	SpongeBob SquarePants	3239070	⬇ 2					30.9	59.4	9.3	0.4
19	Numberphile	2918717	⬇ 1				28.7	41.4	22.0	6.6	0.9
20	tsc	2237847	⬇ 1				89.9	5.9	1.6	0.3	2.4
21	UKRAINE	2053019	⬇ 1	⬆ 1			30.7	13.0	41.6	14.5
22	Wikipedia	1985791	⬆ 1	⬆ 1	⬆ 1		59.2	33.6	4.0	2.2	0.8
23	Dutch Power Cows	1933963	⬇ 6	⬇ 2	⬇ 1		32.6	28.3	1.3	1.3	36.4
24	Swedes Of Primes	1457825	⬇ 3				0.4	83.1	14.0	2.5
25	GIMPS.USA	1390614	⬇ 1				4.5	0.2	3.9	1.5	89.8
26	GIMPS.Japan	1355031	⬇ 4				4.2	0.1	8.8	2.1	84.8
27	UW Eau Claire	1332901	⬆ 57	⬆ 14	⬆ 1	⬆ 1	84.2		11.6	4.2
28	GIMPS.Occitania	1295499	⬇ 3	⬇ 1	⬇ 1	⬇ 1		4.1				95.9
29	MBAi.Cloud	703174		⬆ 1					100.0
30	GIMPS.Korea	672336	⬆ 14	⬆ 1	⬆ 2		88.5	4.5	6.1	0.8	0.1
31	MOXA	655191	⬇ 4	⬇ 3	⬇ 1		98.9		0.7	0.4
32	MATHSareREAL	650485	⬇ 6	⬇ 3	⬇ 1		95.4		3.4	1.2
33	Rechenkraft.net	466929	⬇ 5	⬇ 1			4.7	58.4	3.0	5.7	27.7	0.6
34	Terry Kim Team	456756	⬇ 3	⬇ 1			97.8		1.2	0.6
35	citizenscience.ru	447257	⬇ 5	⬇ 1			84.4	6.3	4.3	0.8	3.6	0.6
36	Buhr	439008	⬇ 3	⬇ 1			60.6	3.2	19.6	5.8	10.8
37	S485122	310283	⬇ 3	⬇ 1				95.0		5.0
38	Smoke-it	272478	⬇ 6	⬇ 1			90.7	6.9	1.8
39	YahsTeam	219910	⬇ 1	⬇ 1			88.3		9.8	1.9
40	nranks	211693	⬆ 5	⬆ 7			33.3	0.6	3.3	0.4	62.4
41	randomteam	208173	⬆ 1	⬆ 1	⬆ 2	⬆ 1					100.0
42	NerdyGirls	206847	⬆ 4	⬇ 3	⬇ 1	⬇ 1	1.0	41.5	7.4	50.1
43	GIMPS Team Philippines	205771			⬇ 1		75.8		2.9	1.6	18.1
44	404 - "Primes not Found"	203463	⬆ 28	⬆ 5	⬆ 2		77.3		22.7
45	Canada	200537	⬇ 8	⬇ 5	⬇ 1			3.0	66.3	29.6
46	Team Tartan	190824	⬇ 7	⬇ 2	⬇ 1				76.9	23.1
47	Colorado School of Mines	174748	⬆ 64	⬆ 9	⬆ 1		89.4		8.0	2.6
48	GIMPS China	152484	⬇ 12	⬇ 3	⬇ 1		93.7		2.7	0.2	3.1
49	OverclockerAustralia	147442	⬇ 1	⬇ 1	⬆ 1		59.6		21.2	15.7
50	BitMEX Research	143741	⬇ 10	⬇ 4	⬇ 1				95.7	4.3
51	Team China	124474	⬆ 3	⬇ 1					99.7	0.3
52	GIMPS.NZ	121388	⬇ 2	⬇ 1			78.8		10.2	11.0
53	Unicamp	116394	⬆ 6	⬆ 4			71.8	0.3	23.0	4.9
54	SASAKI	113664	⬇ 1	⬇ 1			100.0
55	EgyptianPolymaths	111546		⬇ 1				37.8			57.3
56	Cap'n Entropy's Cavalcade of Wonderment	104691	⬇ 7	⬇ 4			76.0	5.3	16.2	2.4
57	Wisconsin	104478	⬇ 6	⬇ 2			50.7		25.8	23.5
58	GIMPS.France	97678	⬆ 11	⬆ 2			11.4	54.0	4.8	15.4	14.2
59	Hungary	88070	⬇ 2				0.5		2.1	2.6	94.5
60	SHADO	84417		⬆ 1					64.7	16.7	11.0	2.0
61	UIUC	78379	⬆ 6	⬆ 2					70.5	29.5
62	Net-Work	76825					2.8	2.0			86.6
63	Eratosthenes Sieve	74473	⬆ 1	⬆ 1			0.7		97.8	1.4
64	AMD Users	70944	⬆ 7	⬆ 7	⬆ 1	⬆ 1	65.8	0.8	13.4	19.5	0.5
65	Esperanto	70310	⬇ 2		⬇ 1	⬇ 1		24.8	12.3	62.8	0.2
66	AJ	60778	⬆ 12	⬆ 9	⬆ 3				76.1	23.9
67	Team Israel	60466	⬇ 1	⬆ 2	⬆ 1		97.4		1.3	1.3
68	GIMPS.NEO	59293			⬇ 1				75.8	24.2
69	ParadoxZ Commando	58007	⬆ 4	⬆ 3	⬆ 1				71.1	28.9
70	Team_Italia	57512	⬆ 4	⬆ 3	⬆ 1		2.7		68.0	22.5	2.2	3.9
71	Wile E. Coyote	56194	⬆ 8	⬆ 7	⬆ 3	⬆ 1			78.6	3.3	18.1
72	Brno University of Technology	55857	⬇ 14	⬇ 2		⬇ 1		21.4	61.7	16.9
73	Team Belgium	54201	⬇ 3	⬆ 1		⬆ 1	1.4	7.6	36.6	13.6	40.7
74	LTT fans	54198	⬇ 13	⬇ 8	⬆ 2	⬆ 2	41.5		7.1	1.2	50.3
75	S147127	53945	⬆ 2	⬆ 1			24.5		10.7	64.7
76	Georgia Tech	51346	⬇ 35	⬇ 18	⬇ 10	⬇ 3	83.9		16.1
77	ComputerraRU	50065	⬇ 12				15.5		75.1	9.4
78	Team Viet Nam	43404	⬇ 22	⬆ 1			28.1		30.7	30.5	10.7
79	IOTA	39737	⬆ 158	⬆ 34	⬆ 10	⬆ 1	96.5		2.1	1.3
80	Team Austria	39592	⬇ 4		⬇ 1	⬇ 1	98.2	0.5		1.3
81	Team H	36306		⬆ 2			10.8	0.8	87.9	0.5
82	HardOCP	34672	⬆ 4	⬆ 5	⬆ 3				77.9	22.1
83	Hermessz	34619		⬆ 1	⬆ 3		64.0		36.0
84	MES-Team	33521	⬇ 9	⬇ 2	⬇ 2	⬆ 1	72.1	7.5		20.4
85	Debian	33266	⬆ 3	⬆ 3	⬇ 2	⬆ 1			98.3	1.7
86	socal_prime	32751	⬇ 4	⬇ 1	⬆ 2	⬆ 1		0.9	66.5	32.4	0.1
87	huskers-gimps	32405	⬆ 3	⬇ 1	⬇ 3	⬇ 3			72.8	27.2
88	Turku	31954	⬆ 27	⬆ 11	⬆ 3	⬆ 1			100.0
89	LimePrime	30422	⬇ 9	⬇ 8	⬇ 2	⬇ 1		4.7	89.3	6.0
90	Small-Team-2000	29203	⬇ 3	⬇ 1		⬆ 1			10.7	89.3
91	NanJing Tech	28336	⬆ 146	⬆ 7	⬆ 4	⬆ 1			83.5	16.5
92	á•™(⇀‸↼‶)á•—	24844	⬆ 31	⬇ 1	⬆ 1	⬆ 1	0.9		98.7	0.4
93	Team Finland	24415	⬇ 46	⬇ 26	⬇ 13	⬇ 3	44.6		54.3		1.1
94	Channel 4	23241	⬆ 11	⬇ 1					81.8	18.2
95	The Fellowship of Infinity	21832	⬆ 19	⬇ 1	⬆ 1				99.5	0.5
96	VIPR	20967	⬆ 20	⬆ 14	⬆ 3		49.6		33.8	16.6
97	Costa Rica	20520	⬇ 6	⬇ 7	⬇ 5				70.8	28.8
98	Team Retired	20141	⬇ 3	⬇ 6	⬇ 1				27.2	10.5
99	Ozzie Prime	19797	⬇ 1	⬆ 3	⬆ 7			4.3	50.6	12.4		32.7
100	PrimitiveRootsCircle	19107		⬇ 5	⬇ 2		28.1		45.2	24.1	2.5
101	A Single Engineer	19008	⬇ 2	⬇ 4	⬆ 1				73.1	26.9
102	MurrayInfoSys	18791	⬆ 15	⬆ 3	⬇ 1	⬆ 1			66.9	33.0
103	Portland State University	18041	⬇ 11	⬆ 1	⬇ 3	⬇ 1	22.5	25.7	39.9	11.9
104	SpartaAlumni	17586	⬇ 10	⬇ 4	⬇ 1				70.6	29.3
105	MadPoo	16807	⬇ 53	⬇ 2	⬇ 1			28.0		72.0
106	Quantus	16634	⬇ 17	⬇ 5	⬆ 1		7.3		27.9	26.8		38.0
107	Team Norway	16151	⬇ 11	⬇ 11	⬇ 2		80.8			4.7	14.3
108	Nerdfighters for Mersenne Primes	15908	⬇ 4				2.9		83.1	14.0
109	Spain	14667	⬇ 24	⬆ 3					63.9	36.1
110	GIMPS.Portugal	14450	⬇ 3	⬇ 1			0.1	72.4		27.5
111	SETI.Germany	14419	⬆ 2	⬆ 4				6.6	22.0	71.4
112	Team Slovenia	13492	⬇ 15	⬇ 6					74.6	25.3
113	NUST	13139	⬆ 83	⬆ 6	⬆ 3		9.6	80.8	6.4	3.2
114	GIMPS.Taiwan	12906	⬇ 13	⬇ 7					85.8	13.7	0.1
115	moeses	12569	⬇ 6	⬆ 1	⬇ 2				99.1	0.9
116	Granada	12363	⬇ 10	⬆ 2	⬆ 2		31.9		12.7	54.8
117	Politeknik Banting, Selangor	12136	⬇ 24	⬇ 6	⬇ 2		84.2		6.5	9.3
118	Mensa	11954		⬇ 1	⬇ 1				78.9	21.1
119	Abacus	11909	⬆ 3	⬆ 2	⬆ 1				93.1	6.9
120	Hyperion	11054	⬇ 10	⬇ 6	⬇ 1				2.3	29.6
121	FREE ROBUX	10852	⬆ 116	⬆ 1					100.0
122	Royal Military College of Canada	10691	⬇ 2	⬆ 1			89.7		7.9	2.4
123	FreeBSD	10084	⬇ 15	⬆ 4			0.5		82.7	16.8
124	Server66	9937	⬆ 5	⬆ 8	⬆ 7		100.0
125	Syntony	9742		⬆ 3	⬆ 1					100.0
126	MES22-Team	9680	⬇ 24	⬇ 2	⬇ 2		100.0
127	Com Systems (RU)	9520	⬆ 26	⬆ 8	⬆ 1				65.4	34.6
128	youngfun429	9445	⬇ 25	⬇ 8	⬇ 1				65.6	34.4
129	Die Zeitfinder	9240	⬇ 17	⬇ 4					100.0
130	Aiblspitz	8986	⬆ 4	⬆ 3	⬆ 3	⬆ 1	1.8	64.4	17.6	14.3	1.9
131	Shaffer's Studio	8924	⬇ 5	⬇ 2	⬇ 6	⬇ 1			86.9	13.0
132	JiBoTeam	8793	⬇ 2	⬇ 6	⬇ 2					100.0
133	Triangle	8066	⬇ 12	⬇ 3	⬇ 1				95.9	4.1
134	RobotechResearch	7837	⬆ 43	⬆ 27	⬆ 1				40.7	59.3
135	irowiki	7828	⬇ 7	⬆ 1	⬆ 2					100.0
136	Team Splunk	7605	⬇ 3	⬆ 1	⬆ 2			28.1	71.9
137	University of Waterloo	7044	⬇ 2	⬆ 5	⬆ 2				100.0
138	TurkishMath	7023	⬇ 14	⬇ 7	⬇ 2				89.1	10.9
139	Furry Primes	6899	⬇ 8	⬇ 5	⬇ 5		67.9		15.7	16.4
140	Brasil	6846	⬇ 8	⬇ 2					79.8	20.1
141	Prime Rib	6524	⬇ 4	⬇ 1					96.8	3.2
142	SU Prime Pirates	6437	⬇ 4	⬇ 1					61.5	38.5
143	Elisabeth-von-Thadden-Schule	6009			⬆ 1				38.6	61.4
144	Team Christensen	5900	⬇ 3		⬇ 1					100.0
145	GIMPS Romania	5555	⬇ 1						100.0
146	WSU Cougars	5369	⬇ 10	⬇ 7					57.8	42.1
147	The_Dude_Abides	5151	⬇ 7	⬇ 1			36.8			51.6
148	Argentina	5122	⬆ 89	⬆ 83	⬆ 79				100.0
149	nmbarek_team	4957	⬇ 30	⬇ 1	⬇ 1				99.7	0.3
150	teamMALI	4901	⬇ 2		⬇ 1				79.3	20.6
151	Hong Kong GIMP	4898		⬇ 2	⬇ 1				63.7	36.3
152	zeit	4731	⬇ 10	⬇ 1	⬇ 1		2.3			97.7
153	Danpi for GIMPS	4710	⬇ 4	⬇ 1	⬇ 1		100.0
154	Olympic College	4082	⬆ 1	⬆ 3	⬇ 1					100.0
155	Kabylie	3817	⬇ 3	⬆ 1	⬇ 1		15.6	4.2	40.8	39.4
156	3DCenter.org	3602	⬇ 11	⬇ 1	⬇ 1						100.0
157	FactorMania	3453	⬆ 69	⬆ 7	⬇ 1			58.5			41.5
158	México mágico	3395	⬆ 24	⬆ 7	⬆ 1				69.8	30.2
159	Korea.Prime	3376	⬆ 31	⬆ 12	⬆ 1	⬆ 2			69.6	30.4
160	Crunching@EVGA	3311	⬆ 77	⬆ 7	⬇ 3	⬇ 1			99.6	0.4
161	Noam Karni Team	3156	⬆ 28	⬆ 8	⬇ 3	⬇ 1			75.1	24.9
162	International School of Beijing (ISB)	3082	⬇ 23	⬇ 9	⬇ 1				99.5	0.5
163	GIMPS.Hong Kong	3016	⬇ 7	⬇ 4	⬇ 1		2.7		51.1	46.2
164	Team_Brazil	2999		⬇ 1	⬇ 1		83.1	0.2		16.7
165	Phi Kappa Theta	2827	⬇ 4	⬇ 7	⬇ 1				55.8	44.1
166	I Love Canadian Natural Resources	2507	⬇ 1	⬆ 2	⬇ 1					100.0
167	Pi Rho	2499	⬆ 70	⬆ 14	⬇ 1				67.1	32.9
168	The Prime Pioneers	2424	⬆ 27	⬇ 2	⬇ 1		1.0	88.2		10.4	0.3
169	GIMPSMalaysia	2394	⬆ 22	⬆ 6	⬇ 1				66.8	33.2
170	VRS_SE	2359			⬇ 1				66.8	33.2
171	TunisianTeam	2303	⬇ 13	⬇ 11	⬇ 1				33.6	66.4
172	Saudi Primes	2268	⬇ 6	⬆ 1	⬇ 1					100.0
173	GIMPS_KS	2193	⬆ 59	⬆ 1	⬇ 1				36.6	62.0	1.4
174	Subprime Searches	2002	⬇ 5	⬇ 2	⬇ 1		87.2			12.8
175	The Pensis	1869	⬇ 2	⬆ 1	⬇ 1					100.0
176	F=dp/dt	1845	⬇ 2	⬆ 1	⬇ 1				85.8	14.2
177	Obsidian	1821	⬆ 2	⬆ 1	⬇ 1					100.0
178	Zorin OS Crew	1718	⬇ 19	⬇ 16					44.9	55.1
179	GIMPS_IOM	1712	⬇ 3				100.0
180	ANDY	1586	⬇ 30	⬆ 3	⬆ 1				98.5	1.5
181	San Francisco	1586	⬇ 3	⬆ 3	⬆ 1				100.0
182	cr_colorado	1549	⬆ 20	⬆ 3	⬆ 1					100.0
183	CZAsTc	1447	⬆ 53	⬆ 5	⬆ 1	⬆ 1			99.6	0.4
184	Optimists Prime	1435	⬇ 38	⬇ 37	⬇ 7	⬇ 1		100.0
185	math.auth.gr	1355	⬆ 23	⬆ 5		⬆ 1			61.7	38.3
186	His Dark Materials	1351	⬇ 19	⬇ 6	⬇ 6	⬇ 1				48.2	51.7
187	TimE4This	1266	⬇ 3		⬇ 1					100.0
188	alan145	1184	⬇ 31	⬇ 6	⬇ 1		84.6	2.5		0.4	12.5
189	Czech National Team	1182	⬇ 27	⬆ 21	⬆ 16		3.2		70.1	24.2	1.5
190	Morocco	1062	⬆ 47	⬆ 6	⬇ 2					100.0
191	Therian Primes	841	⬆ 46	⬆ 25	⬆ 9			17.5		62.8	19.7
192	Happy	807	⬇ 5	⬇ 1	⬇ 3						100.0
193	AWC	801	⬆ 44	⬆ 2	⬇ 3				100.0
194	GIMPS Asturias	794	⬆ 3	⬆ 3	⬇ 3				99.6	0.4
195	Weatopians	793	⬆ 3	⬆ 3	⬇ 3				99.7	0.3
196	Sæve Nordic Prime	781	⬆ 3	⬆ 3	⬇ 3				100.0
197	hreid	776	⬇ 14	⬆ 3	⬇ 3				100.0
198	ISISS Valle Seriana	758	⬆ 2	⬆ 5	⬇ 1				99.9	0.1
199	Join Us 😈	708	⬆ 10	⬆ 5			100.0
200	SGDynamo Dresden	611	⬆ 5	⬆ 5	⬆ 1		100.0
201	Arpan Sen Labs	544	⬆ 36	⬆ 30	⬆ 9					100.0
202	PrimeObsession	539	⬆ 35	⬆ 4						100.0
203	London Computation Club	478	⬆ 9	⬆ 5						100.0
204	BrainStone	461	⬇ 41	⬇ 12	⬇ 6					100.0
205	Team Dominik Radler	351	⬆ 2	⬆ 4	⬆ 1		100.0
206	/r/counting	337	⬆ 19	⬆ 6	⬆ 1
207	KnightLight	315	⬆ 7	⬆ 6	⬆ 1					99.3
208	Yurunago	276	⬆ 29	⬆ 23	⬆ 1					100.0
209	www.Adamek.biz	265	⬆ 7	⬆ 6	⬆ 2					100.0
210	Math Teachers of the World	259	⬆ 7	⬆ 7	⬆ 3				100.0
211	GIMPS Hams	253	⬆ 7	⬆ 7	⬆ 3			100.0
212	DividerHunt	221	⬆ 11	⬆ 8	⬆ 3		100.0
213	Manri Costa Rica	213	⬇ 38	⬆ 8	⬆ 3					100.0
214	30thousandwon	193	⬆ 8	⬆ 10	⬆ 3					100.0
215	Team Bulgaria	192	⬇ 12	⬇ 4	⬆ 3						99.9
216	miiro	150	⬆ 21	⬆ 15	⬆ 3		100.0
217	GIMPS.Peace	122	⬆ 12	⬆ 8	⬆ 3		44.7	55.3
218	TeamUbuntu	121	⬆ 10	⬆ 8	⬆ 3					100.0
219	sannerud.com	74	⬆ 15	⬆ 11	⬆ 3		31.3				13.9	54.8
220	FourthFloorFourEyes	46	⬆ 11	⬆ 8	⬆ 3		100.0
221	PROMYS	23	⬆ 12	⬆ 8	⬆ 4	⬆ 1					100.0
222	PARG team	21	⬆ 15	⬆ 9	⬆ 5	⬆ 1					100.0
223	TeamEc	18	⬇ 17	⬆ 4	⬆ 1	⬇ 2					100.0
224	Unteranger Primelurche	9	⬇ 20	⬇ 10	⬇ 12					98.9
225	yfinder	1	⬇ 4	⬇ 3	⬆ 1					100.0