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 2026-04-21 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	831551074					0.2		0.1		99.7
2	Slovakia	770641025					0.1	98.6	0.1		1.2
3	PrimeNet	337654666					0.1	97.4	0.3	0.4	1.9
4	POLAND	210600858					0.5	97.7	0.3	0.1	1.5
5	-Too many Ones-	159199850					0.1	90.5			9.3
6	Ars Technica Team Prime Rib	115494573	⬆ 1					99.1		0.8
7	unRAID	33397745	⬇ 1					99.7	0.3
8	GIMPSChina	21942146					69.9	20.1	4.0	0.6	5.3
9	One Man Team	13939039		⬆ 1				99.5	0.5
10	GW's legions	13075700	⬆ 1	⬆ 1				0.8	33.8	1.3	64.0
11	Team-Deutschland	12542197	⬆ 1	⬆ 2			2.9	34.5	0.5	0.1	61.9
12	UCM-curtisc	11809503	⬆ 1						99.3	0.7
13	szerverem.hu	11154549	⬆ 2	⬆ 2	⬆ 1		3.8	29.8	58.9	3.4	4.1
14	More Power!!!	11129332	⬇ 4	⬇ 5	⬇ 1		17.2	71.1	2.5	1.5	7.7
15	TeamUK	7096597	⬇ 1	⬇ 1			47.1	3.8	19.1	1.4	28.4	0.1
16	Porta Kruse	6410140					2.0	0.4			91.4	6.1
17	GPU to 72	4695129					52.6	27.0	0.4	3.9	15.9
18	Numberphile	2744209	⬆ 1	⬆ 1			24.2	44.7	23.0	6.5	1.3
19	tsc	2704647	⬆ 2	⬆ 1	⬆ 1		74.7	4.3	1.2	0.3	19.4
20	SpongeBob SquarePants	2484226	⬇ 2	⬇ 2	⬇ 1			31.1	59.0	9.9
21	UW Eau Claire	2435386	⬆ 32	⬆ 2			87.3		9.3	3.4
22	UKRAINE	2158315		⬇ 1			21.7	11.8	50.8	15.7
23	Wikipedia	2046261		⬇ 1			60.3	32.5	4.1	2.1	0.8
24	Dutch Power Cows	1585943	⬇ 4				30.1	27.4	1.4	1.6	39.5
25	GIMPS.USA	1499082					10.2	0.5	4.5	1.5	83.2
26	GIMPS.Japan	1338855		⬆ 1			6.0		9.2	2.5	82.2
27	Swedes Of Primes	1316516	⬇ 3	⬇ 1			0.5	81.1	15.7	2.8
28	GIMPS.Occitania	1204339	⬇ 1					4.4				95.6
29	Argentina	1058881	⬆ 206	⬆ 47	⬆ 8		88.9		11.1
30	GIMPS.Korea	924094	⬆ 4	⬇ 1	⬇ 1		89.2	4.8	4.8	0.9	0.1
31	MBAi.Cloud	761755	⬇ 1	⬇ 1	⬇ 1				99.9	0.1
32	MATHSareREAL	626216	⬇ 3	⬇ 1	⬇ 1		96.0		2.8	1.2
33	citizenscience.ru	546561	⬇ 1		⬇ 1		87.7	3.5	4.2	1.1	2.9	0.5
34	MOXA	501002	⬇ 6	⬇ 2	⬇ 1		98.9		0.8	0.4
35	Buhr	458154			⬇ 1		56.7	3.8	18.2	5.7	15.6
36	Rechenkraft.net	422585	⬇ 5	⬇ 2	⬇ 1		2.6	56.3	4.2	5.6	31.3
37	Terry Kim Team	415753	⬇ 4	⬇ 1	⬇ 1		96.9		2.1	0.6
38	S485122	307754	⬇ 1	⬇ 1				95.0		5.0
39	Colorado School of Mines	266723	⬆ 21	⬆ 3	⬆ 1	⬆ 1	92.9		5.4	1.7
40	Smoke-it	265746	⬇ 4	⬇ 2	⬇ 1	⬇ 1	90.5	7.1	1.8
41	YahsTeam	217430	⬇ 3	⬇ 2			88.3		9.8	1.9
42	randomteam	208173	⬆ 2	⬇ 2							100.0
43	404 - "Primes not Found"	205863	⬆ 13	⬆ 1	⬆ 3	⬆ 1	85.7		14.2	0.1
44	GIMPS Team Philippines	204200	⬇ 1	⬇ 1	⬇ 1	⬇ 1	64.6		6.1	1.8	24.7
45	NerdyGirls	201013	⬇ 6	⬇ 4	⬇ 1			42.4	7.3	50.4
46	nranks	198709		⬇ 1	⬇ 1		37.2	0.6	3.6	0.4	58.2
47	Canada	187927	⬇ 6	⬇ 1				2.6	67.4	29.6
48	Team Tartan	182606	⬇ 6	⬇ 1					76.7	23.3
49	OverclockerAustralia	151213	⬇ 2	⬇ 1			58.1		20.6	17.8
50	GIMPS.NZ	127181	⬇ 1	⬆ 2			79.9		9.8	10.4
51	Team China	123636	⬇ 3						99.7	0.3
52	Unicamp	123239	⬆ 5	⬆ 1			70.3	0.1	24.9	4.7
53	NanJing Tech	121708	⬆ 45	⬆ 14	⬆ 2		23.8		70.4	5.8
54	BitMEX Research	115119	⬇ 9	⬇ 4	⬇ 1				95.9	4.1
55	GIMPS China	111527	⬇ 15	⬇ 6	⬇ 1		90.9		4.6		4.2
56	SASAKI	109469	⬇ 5	⬇ 2			100.0
57	GIMPS.France	108703	⬆ 6				10.3	62.6	5.2	9.1	12.7
58	Wisconsin	96457	⬇ 6	⬇ 2			46.4		29.2	24.4
59	EgyptianPolymaths	91373	⬇ 5	⬇ 4		⬆ 1		47.2			45.8
60	Cap'n Entropy's Cavalcade of Wonderment	91185	⬇ 10	⬇ 2		⬇ 1	75.1	5.9	16.7	2.3
61	AMD Users	84737	⬆ 11	⬆ 2	⬆ 2	⬆ 1	55.0	0.7	11.2	32.6	0.5
62	UIUC	84197	⬆ 5	⬇ 2	⬇ 1	⬇ 1			68.7	31.3
63	SHADO	82552	⬇ 2	⬇ 4	⬇ 1				64.0	17.3	11.1	1.8
64	IOTA	77433	⬆ 171	⬆ 9	⬆ 2		95.7		2.2	2.1
65	Net-Work	76788	⬇ 3	⬇ 4	⬇ 1		3.9	1.8			86.6
66	Eratosthenes Sieve	74605		⬇ 4	⬇ 1		0.7		95.4	3.8
67	Esperanto	69767	⬇ 2	⬇ 2				25.1	6.8	67.9	0.2
68	Wile E. Coyote	67268	⬆ 10						76.1	1.3	22.6
69	AJ	65470	⬆ 5	⬇ 3					75.0	25.0
70	Hungary	63953	⬇ 12	⬇ 6			0.4		2.6	2.0	94.6
71	Team_Italia	61083	⬆ 2	⬇ 1	⬆ 1		2.7		70.5	20.9	2.0	3.2
72	ParadoxZ Commando	59659	⬇ 1	⬇ 3	⬇ 1				72.6	27.4
73	Team Israel	58449	⬇ 3	⬇ 2			96.4		2.7	0.9
74	S147127	58442	⬆ 2				28.6		14.0	57.4
75	GIMPS.NEO	52191	⬇ 6	⬇ 3	⬆ 1				78.8	21.2
76	Brno University of Technology	51100	⬇ 8	⬇ 1	⬆ 1			13.5	69.2	17.4
77	ComputerraRU	50081		⬆ 1	⬇ 2		20.6		70.0	9.4
78	Team Belgium	48005	⬇ 3	⬇ 1			1.1	8.0	34.3	16.9	39.7
79	Team Viet Nam	42563		⬆ 1	⬆ 1		28.7		31.3	29.1	10.9
80	HardOCP	38829	⬆ 6	⬆ 4	⬆ 1				75.8	24.2
81	Debian	37231	⬆ 7	⬆ 4	⬆ 1				98.5	1.5
82	GIMPS.Portugal	37173	⬆ 27	⬆ 27	⬆ 14	⬆ 3	35.4	50.9		13.7
83	LTT fans	36745	⬇ 19	⬇ 4	⬇ 4	⬇ 1	23.3		2.1		74.6
84	Turku	36285	⬆ 33	⬇ 2	⬇ 1	⬇ 1			100.0
85	huskers-gimps	35130	⬆ 2	⬆ 1		⬇ 1			73.9	26.1
86	Team H	34282	⬇ 3	⬇ 3	⬇ 2		12.8		86.6	0.6
87	Hermessz	32410	⬇ 2		⬇ 1		63.8		36.2
88	VIPR	31281	⬆ 30	⬆ 5	⬇ 1		72.1		17.7	10.2
89	ᕙ(⇀‸↼‶)ᕗ	30348	⬆ 5	⬆ 3	⬆ 1		0.7		98.9	0.4
90	Small-Team-2000	29644	⬇ 1		⬇ 1	⬆ 1			10.6	89.4
91	socal_prime	28684	⬇ 7	⬇ 2	⬇ 3	⬇ 1			70.6	29.2	0.1
92	MES-Team	26720	⬇ 11	⬇ 4			70.1	7.5		22.4
93	Channel 4	25622	⬆ 11	⬆ 3					83.4	16.6
94	Team Austria	24321	⬇ 14	⬇ 13	⬇ 3		92.1	0.9	7.0
95	Costa Rica	24237	⬇ 4	⬆ 2					73.8	25.8
96	The Fellowship of Infinity	24196	⬆ 3	⬇ 1	⬇ 2				99.5	0.5
97	MurrayInfoSys	20413	⬆ 11	⬆ 1	⬆ 1				65.8	34.2
98	LimePrime	19634	⬇ 16	⬇ 7	⬇ 1			7.2	83.5	9.3
99	Team Retired	19389	⬇ 6						28.3	11.0
100	PrimitiveRootsCircle	18133	⬇ 4				21.1		48.0	28.3	2.7
101	A Single Engineer	18087	⬇ 4						72.9	27.1
102	SpartaAlumni	17610	⬇ 1						70.8	29.2
103	Georgia Tech	15541	⬇ 48	⬇ 9	⬆ 2				100.0
104	GIMPS Romania	14849	⬆ 41	⬆ 40	⬆ 15	⬆ 4	64.4		32.0	3.5
105	Spain	14423	⬆ 2	⬆ 3	⬇ 1	⬇ 1			64.9	35.1
106	SETI.Germany	14419	⬆ 9	⬆ 4		⬇ 1		6.6	22.0	71.4
107	Ozzie Prime	14353	⬇ 5	⬇ 3	⬇ 4	⬇ 1		4.1	38.5	16.9		40.6
108	NUST	14223	⬆ 21	⬆ 3	⬇ 1	⬇ 1	16.4	74.6	5.9	3.0
109	Portland State University	13867	⬇ 14	⬇ 6	⬇ 1			32.7	51.9	15.4
110	Team Finland	13648	⬇ 51	⬆ 3	⬆ 1		0.9		97.1		2.0
111	Nerdfighters for Mersenne Primes	13261	⬇ 6	⬇ 5	⬆ 1				88.0	12.0
112	Aiblspitz	13248	⬆ 22	⬆ 11	⬆ 1		1.2	75.8	11.9	9.7	1.3
113	Team Norway	13014	⬇ 21	⬇ 8	⬇ 4		80.4			3.9	15.5
114	Quantus	12909	⬇ 14	⬇ 7	⬇ 4		9.4		12.2	29.4		49.0
115	Team Slovenia	12678	⬇ 12	⬆ 1	⬆ 1				73.6	26.4
116	moeses	12587	⬇ 5	⬇ 2	⬇ 2				99.1	0.9
117	Com Systems (RU)	12113	⬆ 21	⬆ 5	⬇ 2				64.3	35.6
118	MadPoo	11152	⬇ 28	⬇ 6				42.1		57.9
119	FREE ROBUX	10852	⬆ 1	⬆ 1	⬆ 2				100.0
120	Royal Military College of Canada	10691	⬆ 2	⬆ 1	⬆ 3		89.7		7.9	2.4
121	Mensa	10488	⬇ 2	⬇ 6	⬇ 4				89.9	10.1
122	Politeknik Banting, Selangor	10426	⬇ 12	⬇ 4			89.7		7.6	2.7
123	Granada	10142	⬇ 11	⬇ 4	⬆ 1		31.3		15.5	52.6
124	GIMPS.Taiwan	10077	⬇ 18	⬇ 7	⬇ 4				86.7	12.8	0.1
125	Syntony	9731	⬆ 3	⬆ 2						100.0
126	TurkishMath	9477	⬆ 5	⬆ 7					83.7	16.3
127	RobotechResearch	9445	⬆ 57	⬆ 1					42.6	57.4
128	JiBoTeam	9351	⬇ 1	⬆ 4						100.0
129	Die Zeitfinder	9325	⬇ 8						91.7	8.3
130	Shaffer's Studio	8883	⬇ 4						87.5	12.4
131	FreeBSD	8251	⬇ 8	⬇ 7	⬆ 2				76.4	23.6
132	Abacus	7920	⬇ 8	⬆ 3	⬇ 1	⬆ 1			99.0	1.0
133	Hyperion	7918	⬇ 20	⬇ 7	⬇ 1	⬇ 1				24.2
134	Triangle	7839	⬇ 4	⬇ 3	⬆ 2				99.0	1.0
135	math.auth.gr	7716	⬆ 71	⬆ 50	⬇ 1				99.8	0.2
136	Team Splunk	7605		⬆ 1	⬆ 1			28.1	71.9
137	University of Waterloo	7519	⬆ 5	⬆ 2	⬆ 2				100.0
138	Prime Rib	7343	⬆ 2	⬆ 3	⬆ 2	⬆ 1			96.8	3.2
139	Server66	7322	⬇ 7	⬇ 14	⬇ 1	⬇ 1	100.0
140	Brasil	6689	⬇ 3		⬆ 2	⬆ 1			81.7	18.2
141	irowiki	6573	⬇ 6	⬇ 3		⬇ 1				100.0
142	SU Prime Pirates	6437	⬇ 1		⬆ 1				61.5	38.5
143	Team Christensen	6019	⬆ 1		⬆ 1					100.0
144	Elisabeth-von-Thadden-Schule	5505	⬇ 1	⬆ 1	⬆ 1				42.1	57.9
145	youngfun429	5433	⬇ 29	⬇ 11	⬆ 1				56.8	43.2
146	MES22-Team	5150	⬇ 32	⬇ 10	⬇ 11		100.0
147	nmbarek_team	4953	⬇ 22	⬆ 2	⬆ 2	⬆ 1			99.8	0.2
148	Crunching@EVGA	4888	⬆ 35	⬆ 8	⬆ 3	⬆ 2			99.7	0.3
149	Furry Primes	4855	⬇ 16	⬇ 3	⬇ 1		76.7			23.3
150	FactorMania	4783	⬆ 16	⬆ 7	⬆ 3	⬆ 2		57.4			42.5
151	The_Dude_Abides	4770	⬇ 3	⬇ 3	⬆ 1		36.5			55.7
152	Danpi for GIMPS	4710	⬇ 1		⬆ 2	⬆ 1	100.0
153	Hong Kong GIMP	4696		⬇ 2	⬇ 3	⬆ 1			66.7	33.3
154	teamMALI	4384	⬇ 4	⬇ 4	⬇ 7	⬇ 7			71.2	28.8
155	México mágico	4207	⬆ 10						75.3	24.7
156	Olympic College	4079	⬆ 2	⬇ 2						100.0
157	zeit	4056	⬇ 8	⬇ 4			1.9			98.1
158	Noam Karni Team	3962	⬆ 12						79.7	20.3
159	Phi Kappa Theta	3650	⬆ 1	⬆ 4					66.2	33.8
160	Korea.Prime	3638	⬆ 12		⬆ 1				64.6	35.4
161	GIMPS.Hong Kong	3622	⬇ 4	⬆ 3	⬇ 1		1.6		65.7	32.7
162	Kabylie	3216	⬇ 6	⬇ 3			16.1	4.1	48.4	31.3
163	Team_Brazil	2999		⬇ 1			83.1	0.2		16.7
164	Arpan Sen Labs	2912	⬆ 71	⬆ 15					43.6	56.4
165	KnightLight	2786	⬆ 47	⬆ 40						99.9
166	3DCenter.org	2551	⬇ 14	⬇ 5							100.0
167	I Love Canadian Natural Resources	2507	⬇ 3	⬇ 2						100.0
168	Pi Rho	2499	⬆ 46	⬇ 2					67.1	32.9
169	GIMPSMalaysia	2394	⬆ 5	⬇ 2	⬆ 1				66.8	33.2
170	VRS_SE	2361	⬆ 1	⬇ 2	⬆ 1				66.8	33.2
171	WSU Cougars	2199	⬇ 32	⬇ 24	⬇ 2				69.8	30.1
172	GIMPS_KS	2199	⬆ 19		⬆ 1				36.5	62.0	1.4
173	Morocco	2181	⬆ 32	⬆ 16	⬆ 13				38.6	61.4
174	The Prime Pioneers	1919	⬆ 2					100.0
175	The Pensis	1869	⬆ 2	⬆ 1						100.0
176	GIMPS_IOM	1712	⬆ 5	⬆ 2	⬆ 1		100.0
177	Obsidian	1700	⬆ 2	⬇ 4	⬆ 1					100.0
178	YESHUA IS THE MESSIAH	1654	⬆ 57	⬆ 47	⬆ 1				99.3	0.7
179	Subprime Searches	1614	⬇ 12	⬇ 4	⬇ 3		84.2			15.8
180	F=dp/dt	1589	⬇ 2	⬇ 3					99.6	0.4
181	San Francisco	1586	⬆ 4	⬇ 1					100.0
182	hreid	1575	⬆ 15	⬆ 15	⬆ 15	⬆ 12			100.0
183	cr_colorado	1549	⬆ 3	⬇ 1	⬇ 1	⬇ 1				100.0
184	Zorin OS Crew	1469	⬇ 22	⬇ 1		⬇ 1			52.5	47.5
185	CZAsTc	1448	⬆ 48	⬇ 1		⬇ 1			99.5	0.4
186	TunisianTeam	1031	⬇ 25	⬇ 16	⬆ 1	⬇ 1			75.0	25.0
187	Therian Primes	1007	⬆ 29	⬆ 3	⬆ 2	⬇ 1		14.6		52.4	33.0
188	His Dark Materials	1000	⬇ 8	⬇ 2		⬇ 1				43.6	56.3
189	Czech National Team	906	⬆ 12	⬇ 2	⬆ 1	⬇ 1	4.1		91.4	1.2	2.0
190	TimE4This	876	⬇ 2	⬆ 2	⬆ 1	⬇ 1				100.0
191	AWC	801	⬆ 44	⬆ 2	⬆ 2	⬇ 1			100.0
192	GIMPS Asturias	794	⬆ 1	⬆ 2	⬆ 3	⬇ 1			99.6	0.4
193	Weatopians	793	⬆ 1	⬆ 2	⬆ 3	⬇ 1			99.7	0.3
194	International School of Beijing (ISB)	777	⬇ 48	⬇ 25	⬇ 11	⬇ 1			98.8	1.2
195	Saudi Primes	757	⬇ 22	⬇ 24	⬇ 23					100.0
196	Optimists Prime	727	⬇ 49	⬇ 8	⬇ 4			100.0
197	Join Us 😈	708	⬆ 10	⬆ 2	⬆ 1		100.0
198	alan145	643	⬇ 23	⬇ 7	⬆ 1		99.3			0.7
199	SGDynamo Dresden	565	⬆ 3	⬆ 1	⬆ 1		100.0
200	PrimeObsession	539	⬆ 4	⬆ 1	⬆ 1					100.0
201	London Computation Club	478	⬆ 7	⬆ 1	⬆ 1					100.0
202	Team Dominik Radler	351	⬆ 7	⬆ 1	⬆ 1		100.0
203	Yurunago	276	⬆ 32	⬆ 3	⬆ 2					100.0
204	Vegan	275	⬆ 31	⬆ 21	⬆ 2					100.0
205	Byberg Nordic Prime	265	⬇ 10	⬇ 9	⬆ 2					100.0
206	www.Adamek.biz	265	⬆ 9	⬆ 1	⬆ 2					100.0
207	/r/counting	263	⬆ 4	⬇ 3	⬇ 3
208	Math Teachers of the World	259	⬆ 9		⬆ 1				100.0
209	GIMPS Hams	253	⬆ 9		⬆ 1			100.0
210	DividerHunt	221	⬆ 12		⬆ 1		100.0
211	Manri Costa Rica	213	⬇ 19	⬆ 1	⬆ 1					100.0
212	30thousandwon	193	⬆ 13	⬆ 1	⬆ 1					100.0
213	Team Bulgaria	152	⬇ 10	⬆ 1	⬆ 1						100.0
214	miiro	150	⬆ 21	⬆ 1	⬆ 1		100.0
215	GIMPS.Peace	122	⬆ 11	⬆ 1	⬆ 1		44.7	55.3
216	TeamUbuntu	121	⬆ 11	⬆ 1	⬆ 1					100.0
217	sannerud.com	108	⬆ 15	⬆ 1	⬆ 1		43.1				19.4	37.5
218	PROMYS	23	⬆ 12	⬆ 2	⬆ 1						100.0
219	PARG team	21	⬆ 16	⬆ 2	⬆ 1						100.0
220	ANDY	9	⬇ 66	⬇ 39	⬇ 26					98.4
221	yfinder	1	⬆ 2	⬆ 3						100.0