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 2026-03-10 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	942672514					0.3		0.1		99.6
2	Slovakia	765886222	⬆ 1				0.1	97.8	0.1		2.0
3	POLAND	403064599	⬆ 1				0.3	98.9	0.2		0.7
4	PrimeNet	337612846	⬇ 2					97.4	0.3	0.4	1.9
5	-Too many Ones-	189512111					0.2	92.1			7.6
6	Ars Technica Team Prime Rib	69302894		⬆ 1				98.5	0.1	1.3	0.1
7	unRAID	33457665		⬇ 1				99.6	0.4
8	GIMPSChina	22562497					74.3	17.7	4.0	0.6	3.3
9	More Power!!!	14662866	⬆ 1	⬆ 1			13.6	56.5	1.8	0.8	27.2
10	One Man Team	13947517	⬇ 1	⬇ 1				99.4	0.6
11	GW's legions	12780831					0.1	0.9	30.8	0.9	67.3
12	UCM-curtisc	11879386	⬆ 1						99.3	0.7
13	Team-Deutschland	11295926	⬇ 1				3.7	10.6	0.4	0.1	85.1
14	TeamUK	7499618					41.2	4.9	18.3	1.3	34.1	0.1
15	szerverem.hu	7309777	⬆ 222				5.8	37.0	45.8	5.1	6.2
16	Porta Kruse	6428400	⬆ 15				2.0	0.2		0.1	91.5	6.1
17	GPU to 72	4605544	⬇ 2				55.7	25.4	0.5	3.9	14.3
18	SpongeBob SquarePants	3187598	⬇ 2					30.9	59.3	9.4	0.4
19	Numberphile	2906164	⬇ 1				28.6	41.4	22.3	6.6	0.9
20	tsc	2325119	⬇ 1				90.0	5.8	1.5	0.2	2.4
21	UKRAINE	2012127	⬇ 1	⬆ 1			29.3	13.1	42.7	14.8
22	Wikipedia	1995908	⬇ 1	⬆ 1			59.3	33.4	4.0	2.2	0.8
23	Dutch Power Cows	1888910	⬇ 6	⬇ 2			33.0	27.5	1.3	1.4	36.8
24	UW Eau Claire	1448543	⬆ 60	⬆ 13	⬆ 4	⬆ 1	84.9		11.1	4.0
25	Swedes Of Primes	1447457	⬇ 3	⬇ 1	⬇ 1	⬇ 1	0.4	83.0	14.0	2.5
26	GIMPS.USA	1392433	⬇ 2	⬇ 1	⬇ 1		4.7	0.2	3.9	1.5	89.6
27	GIMPS.Japan	1356308	⬇ 4	⬇ 1			4.3	0.1	8.7	2.1	84.7
28	GIMPS.Occitania	1302492	⬇ 3	⬇ 1	⬇ 2			4.1				95.9
29	MBAi.Cloud	712064		⬆ 1					100.0
30	GIMPS.Korea	688626	⬆ 11	⬆ 1	⬆ 2		88.5	4.5	6.0	0.8	0.1
31	MATHSareREAL	646483	⬇ 5	⬇ 2		⬆ 1	95.4		3.4	1.2
32	MOXA	643969	⬇ 5	⬇ 4	⬇ 2	⬇ 1	98.9		0.7	0.4
33	citizenscience.ru	479155	⬇ 3	⬆ 1	⬆ 2		85.5	5.7	4.0	0.9	3.3	0.6
34	Rechenkraft.net	464838	⬇ 6	⬇ 2	⬇ 1		4.7	58.3	3.0	5.7	27.8	0.6
35	Terry Kim Team	452873	⬇ 3	⬇ 2	⬇ 1		97.8		1.2	0.6
36	Buhr	442337	⬇ 2	⬇ 1			60.4	3.2	19.4	5.9	11.1
37	S485122	310197	⬇ 2	⬇ 1				95.0		5.0
38	Smoke-it	270462	⬇ 5				90.6	7.0	1.8
39	YahsTeam	216319	⬇ 1				88.5		9.4	2.1
40	nranks	211947	⬆ 5	⬆ 7			33.4	0.6	3.3	0.4	62.3
41	randomteam	208173	⬆ 2	⬆ 1							100.0
42	NerdyGirls	206390	⬆ 4	⬇ 2			0.6	41.5	7.5	50.4
43	GIMPS Team Philippines	205871	⬆ 1				74.8		3.3	1.6	18.6
44	404 - "Primes not Found"	202622	⬆ 26	⬆ 5	⬆ 1		79.4		20.6
45	Canada	199690	⬇ 8	⬇ 4	⬇ 1			3.0	66.2	29.7
46	Team Tartan	189853	⬇ 7	⬇ 2					76.4	23.5
47	Colorado School of Mines	180881	⬆ 63	⬆ 5			89.8		7.8	2.5
48	GIMPS China	150929	⬇ 12	⬇ 3			93.7		2.7	0.2	3.1
49	OverclockerAustralia	147693	⬇ 1	⬇ 1			59.5		21.1	15.8
50	BitMEX Research	141875	⬇ 10	⬇ 4					95.7	4.3
51	Team China	126065	⬆ 2	⬇ 1					99.7	0.3
52	GIMPS.NZ	121735	⬇ 2	⬇ 1			78.7		10.2	11.1
53	Unicamp	116782	⬆ 6	⬆ 4			71.9	0.3	23.0	4.9
54	SASAKI	113170	⬇ 2				100.0
55	EgyptianPolymaths	111195	⬇ 1					37.9			57.2
56	Wisconsin	104199	⬇ 5		⬆ 1		50.1		26.5	23.4
57	Cap'n Entropy's Cavalcade of Wonderment	103761	⬇ 8	⬇ 4	⬇ 1		75.8	5.3	16.4	2.4
58	GIMPS.France	99289	⬆ 11	⬆ 2			11.2	54.9	4.8	15.0	13.9
59	SHADO	84422	⬆ 1	⬆ 2	⬆ 1	⬆ 1			64.6	16.7	11.0	2.0
60	Hungary	82998	⬇ 3	⬇ 1	⬇ 1	⬇ 1	0.5		2.2	2.7	94.2
61	UIUC	78638	⬆ 4	⬆ 3					70.3	29.7
62	Net-Work	76589					2.9	2.0			86.5
63	Eratosthenes Sieve	73964	⬆ 1				0.7		97.4	1.8
64	AMD Users	71598	⬆ 7	⬆ 6	⬆ 1		65.2	0.8	13.3	20.2	0.5
65	Esperanto	70400	⬇ 2		⬇ 1			24.8	12.0	63.1	0.2
66	AJ	61348	⬆ 11	⬆ 8	⬆ 3				75.4	24.6
67	Team Israel	59427	⬆ 1	⬆ 2	⬇ 1		97.4		1.3	1.3
68	GIMPS.NEO	59078	⬇ 2	⬇ 1					76.1	23.9
69	Team_Italia	58302	⬆ 5	⬆ 4	⬆ 2		2.7		68.4	22.2	2.1	3.9
70	ParadoxZ Commando	57544	⬆ 3	⬆ 2					71.7	28.3
71	LTT fans	56517	⬇ 10	⬇ 5	⬆ 5		43.8		6.8	0.7	48.6
72	Brno University of Technology	56442	⬇ 14	⬇ 1				21.2	62.5	16.3
73	Wile E. Coyote	56269	⬆ 6	⬆ 5					78.5	2.8	18.6
74	S147127	54805	⬆ 2	⬆ 2	⬆ 1		24.6		12.0	63.4
75	Team Belgium	54257	⬇ 3		⬇ 1		1.4	7.6	36.6	14.0	40.3
76	ComputerraRU	49971	⬇ 9	⬆ 1	⬆ 1		15.3		75.2	9.4
77	Georgia Tech	48960	⬇ 35	⬇ 19	⬇ 10		81.5		18.5
78	IOTA	44181	⬆ 159	⬆ 28	⬆ 3	⬆ 1	93.8		3.8	2.4
79	Team Viet Nam	43404	⬇ 24		⬇ 1	⬇ 1	28.1		30.7	30.5	10.7
80	Team Austria	39218	⬇ 2		⬇ 1		93.8	0.5	4.4	1.3
81	Team H	35572		⬆ 2	⬆ 1		11.2	0.8	87.6	0.5
82	Hermessz	34741	⬆ 1	⬆ 2	⬆ 5	⬆ 1	64.1		35.9
83	HardOCP	34669	⬆ 3	⬆ 5		⬇ 1			77.9	22.1
84	Debian	34049	⬆ 5	⬆ 3		⬆ 1			98.4	1.6
85	Turku	33642	⬆ 32	⬆ 12	⬆ 6	⬆ 1			100.0
86	MES-Team	33521	⬇ 11	⬇ 4	⬇ 1	⬇ 2	72.1	7.5		20.4
87	huskers-gimps	32989	⬆ 1	⬇ 1	⬇ 1				73.9	26.1
88	NanJing Tech	32640	⬆ 149	⬆ 8	⬆ 6	⬆ 1			84.8	15.2
89	socal_prime	31746	⬇ 7	⬇ 4	⬇ 1	⬇ 1		1.0	66.2	32.7	0.1
90	LimePrime	29643	⬇ 10	⬇ 9	⬇ 1			4.8	89.1	6.2
91	Small-Team-2000	28952	⬇ 4	⬇ 2	⬇ 1				10.8	89.2
92	á•™(⇀‸↼‶)á•—	24845	⬆ 31	⬇ 1	⬆ 1		0.9		98.7	0.4
93	Channel 4	23243	⬆ 11	⬇ 1	⬆ 2				81.8	18.2
94	VIPR	21921	⬆ 21	⬆ 16	⬆ 4	⬆ 1	51.8		32.3	15.8
95	The Fellowship of Infinity	21832	⬆ 17	⬇ 1	⬆ 1	⬇ 1			99.5	0.5
96	Costa Rica	20303	⬇ 5	⬇ 6	⬇ 4				71.5	28.1
97	Team Retired	20095	⬇ 2	⬇ 4					27.3	10.5
98	Team Finland	20074	⬇ 51	⬇ 30	⬇ 18		32.6		66.0		1.3
99	PrimitiveRootsCircle	19943	⬆ 1	⬇ 4			26.9		47.5	23.1	2.4
100	Ozzie Prime	19792	⬇ 2	⬆ 2	⬆ 5			4.3	50.6	12.4		32.7
101	MurrayInfoSys	18791	⬆ 15	⬆ 2		⬆ 1			66.9	33.0
102	Argentina	18787	⬆ 135	⬆ 129	⬆ 54	⬆ 7			100.0
103	A Single Engineer	18242	⬇ 4	⬇ 5	⬇ 1	⬇ 2			72.0	28.0
104	Portland State University	17982	⬇ 12	⬆ 1	⬇ 4	⬇ 1	22.6	25.5	40.0	11.9
105	SpartaAlumni	17586	⬇ 11	⬇ 5	⬇ 2	⬇ 1			70.6	29.3
106	Team Norway	16116	⬇ 10	⬇ 7	⬆ 1		81.0			4.7	14.2
107	MadPoo	16095	⬇ 51	⬇ 3	⬇ 3	⬇ 2		29.2		70.8
108	Quantus	15865	⬇ 18	⬇ 7	⬇ 2	⬇ 1	7.7		24.4	28.1		39.8
109	Nerdfighters for Mersenne Primes	15392	⬇ 2		⬇ 1	⬇ 1	1.1		85.8	13.1
110	Spain	14667	⬇ 25	⬆ 2	⬇ 1				63.9	36.1
111	GIMPS.Portugal	14450	⬇ 6		⬇ 1		0.1	72.4		27.5
112	SETI.Germany	14419	⬆ 2	⬆ 3	⬇ 1			6.6	22.0	71.4
113	NUST	13352	⬆ 65	⬆ 5	⬆ 3		11.0	79.5	6.3	3.2
114	GIMPS.Taiwan	12906	⬇ 13	⬇ 6	⬇ 1	⬆ 1			85.8	13.7	0.1
115	moeses	12569	⬇ 9	⬆ 1	⬇ 1	⬆ 1			99.1	0.9
116	Team Slovenia	12508	⬇ 19	⬇ 9	⬇ 4	⬇ 2			74.4	25.6
117	Granada	12255	⬇ 9	⬆ 2	⬆ 1		31.3		12.8	55.3
118	Politeknik Banting, Selangor	12136	⬇ 25	⬇ 5	⬇ 3		84.2		6.5	9.3
119	Mensa	11954	⬇ 1	⬇ 2	⬇ 2				78.9	21.1
120	Abacus	11659	⬆ 2	⬆ 1					95.1	4.9
121	Hyperion	10916	⬇ 10	⬇ 7	⬇ 2				2.4	29.9
122	FREE ROBUX	10852	⬆ 115		⬇ 1				100.0
123	Royal Military College of Canada	10691	⬇ 4		⬇ 1		89.7		7.9	2.4
124	FreeBSD	10084	⬇ 15	⬆ 3	⬇ 1		0.5		82.7	16.8
125	Server66	9937	⬆ 4	⬆ 7	⬇ 1		100.0
126	MES22-Team	9680	⬇ 24	⬇ 2		⬆ 1	100.0
127	Com Systems (RU)	9520	⬆ 26	⬆ 9		⬆ 1			65.4	34.6
128	Aiblspitz	9461	⬆ 6	⬆ 5	⬆ 5	⬆ 2	1.7	66.2	16.7	13.6	1.8
129	youngfun429	9443	⬇ 26	⬇ 9					65.6	34.4
130	Syntony	9317	⬇ 5	⬇ 1	⬇ 2	⬇ 4				100.0
131	Die Zeitfinder	9240	⬇ 18	⬇ 6	⬇ 1				100.0
132	RobotechResearch	8926	⬆ 44	⬆ 29	⬆ 3				45.1	54.9
133	Shaffer's Studio	8916	⬇ 7	⬇ 3	⬇ 8				86.9	12.9
134	Triangle	8854	⬇ 13	⬇ 8	⬇ 3				96.3	3.7
135	JiBoTeam	8038	⬇ 5	⬇ 7	⬇ 3					100.0
136	irowiki	7828	⬇ 8	⬇ 1						100.0
137	Team Splunk	7605	⬇ 4					28.1	71.9
138	University of Waterloo	7044	⬇ 3	⬆ 5					100.0
139	TurkishMath	7023	⬇ 15	⬇ 8					89.1	10.9
140	Furry Primes	6869	⬇ 9	⬇ 6	⬇ 6		67.8		15.7	16.5
141	Brasil	6850	⬇ 9		⬇ 1				79.8	20.2
142	Prime Rib	6524	⬇ 5	⬇ 4	⬇ 1				96.8	3.2
143	SU Prime Pirates	6437	⬇ 4	⬇ 3	⬇ 1				61.5	38.5
144	Team Christensen	5900	⬇ 6	⬆ 1						100.0
145	GIMPS Romania	5815	⬆ 3	⬇ 3					95.5	4.5
146	Elisabeth-von-Thadden-Schule	5757	⬇ 4	⬇ 2	⬇ 3				40.3	59.7
147	teamMALI	5688		⬆ 3	⬆ 2	⬆ 3			82.2	17.8
148	WSU Cougars	5366	⬇ 12	⬇ 9	⬇ 2	⬇ 1			57.8	42.1
149	The_Dude_Abides	5141	⬇ 8	⬇ 3	⬇ 2	⬇ 1	36.8			51.8
150	nmbarek_team	4957	⬇ 30	⬇ 2	⬇ 2	⬇ 1			99.7	0.3
151	Hong Kong GIMP	4899		⬇ 2	⬇ 1				63.6	36.3
152	zeit	4731	⬇ 9	⬇ 1	⬇ 1		2.3			97.7
153	Danpi for GIMPS	4710	⬇ 4	⬇ 1	⬇ 1		100.0
154	México mágico	4194	⬆ 28	⬆ 9	⬆ 6				75.5	24.5
155	Crunching@EVGA	4104	⬆ 82	⬆ 12	⬆ 3				99.7	0.3
156	Olympic College	4082	⬇ 1	⬇ 1	⬇ 3					100.0
157	Kabylie	3786	⬇ 5	⬇ 1	⬇ 3		14.9	4.3	41.1	39.7
158	3DCenter.org	3537	⬇ 14	⬇ 4	⬇ 3						100.0
159	FactorMania	3512	⬆ 56	⬆ 6	⬇ 2			57.5			42.5
160	Korea.Prime	3376	⬆ 30	⬆ 12	⬆ 1				69.6	30.4
161	Noam Karni Team	3156	⬆ 28	⬆ 9	⬇ 2				75.1	24.9
162	International School of Beijing (ISB)	3082	⬇ 22	⬇ 5					99.5	0.5
163	GIMPS.Hong Kong	3016	⬇ 7	⬇ 4			2.7		51.1	46.2
164	Team_Brazil	2999					83.1	0.2		16.7
165	Phi Kappa Theta	2827	⬇ 5	⬇ 7					55.8	44.1
166	I Love Canadian Natural Resources	2507	⬇ 7	⬆ 2						100.0
167	Pi Rho	2499	⬆ 70	⬆ 2					67.1	32.9
168	GIMPSMalaysia	2394	⬆ 23	⬆ 7	⬆ 1				66.8	33.2
169	VRS_SE	2359		⬆ 2	⬆ 1				66.8	33.2
170	TunisianTeam	2303	⬇ 12	⬇ 10	⬆ 1				33.6	66.4
171	Saudi Primes	2268	⬇ 6	⬆ 2	⬆ 1					100.0
172	GIMPS_KS	2193	⬆ 60	⬆ 2	⬆ 1				36.6	62.0	1.4
173	The Prime Pioneers	2135	⬆ 22	⬇ 7	⬇ 5		1.1	98.8
174	Subprime Searches	2002	⬇ 6	⬆ 2			87.2			12.8
175	The Pensis	1869	⬇ 3	⬆ 2						100.0
176	F=dp/dt	1845	⬇ 3	⬆ 2					85.8	14.2
177	Obsidian	1821	⬆ 2	⬆ 2						100.0
178	Zorin OS Crew	1718	⬇ 17	⬇ 16					44.9	55.1
179	GIMPS_IOM	1712	⬇ 4	⬆ 1			100.0
180	San Francisco	1586	⬇ 3	⬆ 4	⬆ 2				100.0
181	ANDY	1583	⬇ 31	⬆ 2					98.7	1.3
182	cr_colorado	1549	⬆ 20	⬆ 3	⬆ 1					100.0
183	CZAsTc	1447	⬆ 53	⬆ 5	⬆ 1				99.6	0.4
184	Optimists Prime	1369	⬇ 39	⬇ 37	⬇ 4			100.0
185	math.auth.gr	1355	⬆ 23	⬆ 5	⬆ 1				61.7	38.3
186	His Dark Materials	1340	⬇ 20	⬇ 5	⬇ 1					48.6	51.3
187	TimE4This	1266	⬇ 3							100.0
188	Czech National Team	1182	⬇ 26	⬆ 22	⬆ 1	⬆ 1	3.2		70.1	24.2	1.5
189	alan145	1122	⬇ 32	⬇ 7	⬇ 1	⬇ 1	89.3	2.7		0.4	7.6
190	Morocco	1062	⬆ 47	⬆ 5						100.0
191	Therian Primes	925	⬆ 46	⬆ 25	⬆ 7			15.9		57.0	27.1
192	Happy	807	⬇ 5	⬇ 1	⬇ 1						100.0
193	AWC	801	⬆ 44	⬆ 1	⬇ 1				100.0
194	GIMPS Asturias	794	⬆ 2	⬆ 2	⬇ 1				99.6	0.4
195	Weatopians	793	⬆ 2	⬆ 2	⬇ 1				99.7	0.3
196	Sæve Nordic Prime	781	⬆ 2	⬆ 2	⬇ 1				100.0
197	hreid	776	⬇ 14	⬆ 2	⬇ 1				100.0
198	ISISS Valle Seriana	758	⬆ 1	⬆ 5	⬇ 1				99.9	0.1
199	Join Us 😈	708	⬆ 10	⬆ 5	⬆ 1		100.0
200	SGDynamo Dresden	611	⬆ 3	⬆ 5	⬆ 1		100.0
201	Arpan Sen Labs	544	⬆ 36	⬆ 30	⬆ 7					100.0
202	PrimeObsession	539	⬆ 35	⬆ 4						100.0
203	London Computation Club	478	⬆ 9	⬆ 5						100.0
204	Team Dominik Radler	351	⬆ 3	⬆ 5			100.0
205	/r/counting	337	⬆ 21	⬆ 7
206	KnightLight	315	⬆ 8	⬆ 7						99.3
207	Yurunago	276	⬆ 30	⬆ 24						100.0
208	www.Adamek.biz	265	⬆ 9	⬆ 7	⬆ 1					100.0
209	Math Teachers of the World	259	⬆ 9	⬆ 8	⬆ 2				100.0
210	GIMPS Hams	253	⬆ 9	⬆ 8	⬆ 2			100.0
211	DividerHunt	221	⬆ 13	⬆ 9	⬆ 2		100.0
212	BrainStone	214	⬇ 49	⬇ 19	⬇ 13					100.0
213	Manri Costa Rica	213	⬇ 39	⬆ 8	⬆ 1					100.0
214	30thousandwon	193	⬆ 9	⬆ 10	⬆ 1					100.0
215	Team Bulgaria	192	⬇ 11	⬇ 4	⬆ 1						99.9
216	miiro	150	⬆ 21	⬆ 15	⬆ 1		100.0
217	GIMPS.Peace	122	⬆ 12	⬆ 8	⬆ 1		44.7	55.3
218	TeamUbuntu	121	⬆ 10	⬆ 8	⬆ 1					100.0
219	sannerud.com	85	⬆ 15	⬆ 11	⬆ 1		27.3				24.8	47.9
220	FourthFloorFourEyes	46	⬆ 11	⬆ 8	⬆ 1		100.0
221	PROMYS	23	⬆ 12	⬆ 8	⬆ 2						100.0
222	PARG team	21	⬆ 15	⬆ 9	⬆ 2						100.0
223	TeamEc	18	⬇ 17	⬆ 4	⬇ 1						100.0
224	Unteranger Primelurche	6	⬇ 19	⬇ 10	⬇ 14					98.4
225	yfinder	1	⬇ 3	⬇ 3						100.0