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 2026-04-12 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	837168318					0.2		0.1		99.7
2	Slovakia	770786830					0.1	98.6	0.1		1.2
3	PrimeNet	337621841		⬆ 1			0.1	97.4	0.3	0.4	1.9
4	POLAND	222712959		⬇ 1			0.5	97.7	0.3	0.1	1.6
5	-Too many Ones-	159855303					0.1	90.6			9.2
6	Ars Technica Team Prime Rib	107816382						99.0		0.9
7	unRAID	33439451						99.7	0.3
8	GIMPSChina	21886580					71.1	19.8	4.0	0.6	4.5
9	One Man Team	13941353		⬆ 1	⬆ 1			99.5	0.5
10	Team-Deutschland	13123262	⬆ 2	⬆ 3	⬆ 2		2.8	27.5	0.4	0.1	69.0
11	GW's legions	12991744					0.1	0.8	33.0	1.2	64.9
12	UCM-curtisc	11827692	⬆ 1		⬆ 1				99.3	0.7
13	More Power!!!	11228979	⬇ 3	⬇ 4	⬇ 4		17.2	71.3	2.5	1.4	7.7
14	szerverem.hu	10820604	⬆ 2	⬆ 1			3.9	29.8	58.6	3.5	4.2
15	TeamUK	7585597	⬇ 1	⬇ 1			43.4	3.8	18.0	1.3	33.3	0.1
16	Porta Kruse	6413189	⬇ 1				2.0	0.3			91.4	6.1
17	GPU to 72	4671301					53.1	26.7	0.5	3.9	15.6
18	Numberphile	2762178	⬆ 1	⬆ 1			25.1	44.2	23.1	6.6	0.8
19	SpongeBob SquarePants	2645202	⬇ 1	⬇ 1				31.1	59.4	9.5
20	tsc	2434959	⬆ 1				83.2	5.1	1.4	0.3	10.0
21	UW Eau Claire	2303518	⬆ 36	⬆ 3			87.1		9.5	3.4
22	UKRAINE	2138727		⬇ 1			22.4	12.4	48.7	16.3
23	Wikipedia	2036481		⬇ 1			60.0	32.7	4.2	2.1	0.8
24	Dutch Power Cows	1607642	⬇ 4	⬇ 1			30.6	27.5	1.4	1.6	39.0
25	GIMPS.USA	1504763		⬆ 1			10.2	0.5	4.6	1.5	83.0
26	GIMPS.Japan	1362600		⬆ 1			5.7		9.2	2.4	82.6
27	Swedes Of Primes	1340495	⬇ 3	⬇ 2			0.5	81.7	15.1	2.7
28	GIMPS.Occitania	1204656	⬇ 1					4.4				95.6
29	GIMPS.Korea	872835	⬆ 6	⬆ 1			89.3	4.8	4.9	0.9	0.1
30	MBAi.Cloud	756805		⬇ 1					99.9	0.1
31	MATHSareREAL	631249	⬇ 2				95.9		2.9	1.2
32	citizenscience.ru	546635		⬆ 1	⬆ 1		88.4	3.7	3.5	1.0	2.9	0.5
33	MOXA	535010	⬇ 5	⬇ 1	⬇ 1		98.9		0.7	0.3
34	Buhr	454098		⬆ 2			57.2	3.8	18.7	5.7	14.7
35	Rechenkraft.net	429893	⬇ 4	⬇ 1			2.6	56.5	3.8	5.5	31.0	0.6
36	Terry Kim Team	424139	⬇ 3	⬇ 1			97.0		2.1	0.6
37	Argentina	313071	⬆ 198	⬆ 55	⬆ 19	⬆ 2	65.9		34.1
38	S485122	308154	⬇ 1	⬇ 1	⬇ 1	⬇ 1		94.9		5.1
39	Smoke-it	265850	⬇ 3	⬇ 1	⬇ 1	⬇ 1	90.5	7.1	1.8
40	Colorado School of Mines	248208	⬆ 30	⬆ 7	⬇ 1		92.5		5.7	1.8
41	YahsTeam	209459	⬇ 3	⬇ 2			89.0		9.0	1.9
42	randomteam	208173	⬆ 1	⬇ 2	⬇ 2						100.0
43	GIMPS Team Philippines	203875	⬆ 1	⬇ 1	⬇ 1		66.8		5.4	1.8	23.5
44	NerdyGirls	202916	⬇ 5	⬇ 3	⬇ 1			42.3	7.2	50.5
45	nranks	197084	⬆ 1		⬇ 1		36.7	0.6	3.6	0.4	58.7
46	Canada	190609	⬇ 5	⬇ 2	⬇ 1			2.7	66.4	30.5
47	Team Tartan	185239	⬇ 5	⬇ 1	⬇ 1				76.8	23.2
48	404 - "Primes not Found"	185107	⬆ 12	⬇ 5	⬇ 1		84.2		15.8
49	OverclockerAustralia	150457	⬇ 2	⬇ 1	⬇ 1		58.4		20.7	17.4
50	GIMPS.NZ	124883		⬆ 2	⬆ 1		78.9		10.6	10.5
51	Team China	123582	⬇ 3		⬆ 2				99.7	0.3
52	Unicamp	122447	⬆ 4	⬆ 1			70.8	0.1	24.5	4.7
53	BitMEX Research	121315	⬇ 8	⬇ 3	⬇ 3				96.1	3.9
54	GIMPS China	119246	⬇ 14	⬇ 5	⬇ 5		91.5		4.3		4.0
55	NanJing Tech	112684	⬆ 53	⬆ 26	⬆ 5		25.3		69.1	5.6
56	SASAKI	110953	⬇ 4	⬇ 2	⬇ 2		100.0
57	GIMPS.France	108297	⬆ 10	⬆ 1	⬇ 2		10.3	62.8	3.7	10.3	12.8
58	EgyptianPolymaths	98146	⬇ 3	⬇ 3	⬇ 1			44.0			49.5
59	Wisconsin	97930	⬇ 8	⬇ 3	⬇ 1		47.3		28.7	24.0
60	Cap'n Entropy's Cavalcade of Wonderment	94188	⬇ 11	⬇ 3	⬇ 1		74.9	5.8	17.1	2.2
61	SHADO	83565	⬇ 2	⬇ 2					64.1	17.4	11.0	1.8
62	UIUC	82759	⬆ 4	⬇ 1					68.8	31.2
63	AMD Users	81238	⬆ 8	⬆ 1			57.4	0.7	11.7	29.7	0.5
64	Net-Work	76938	⬇ 2	⬇ 2			3.6	1.8			86.6
65	Eratosthenes Sieve	74582		⬇ 2			0.7		95.4	3.8
66	IOTA	70868	⬆ 169	⬆ 11	⬆ 4	⬆ 1	95.3		2.4	2.3
67	Esperanto	70482	⬇ 4	⬇ 2	⬇ 1	⬇ 1		25.0	8.9	65.9	0.2
68	AJ	65511	⬆ 6	⬇ 2	⬆ 1				76.1	23.9
69	Wile E. Coyote	64294	⬆ 10	⬆ 2	⬇ 1				76.5	1.7	21.8
70	Hungary	64017	⬇ 12	⬇ 10	⬇ 3		0.5		2.6	2.0	94.5
71	ParadoxZ Commando	60161	⬆ 2	⬇ 4	⬆ 1				73.3	26.7
72	Team_Italia	59977		⬇ 3	⬇ 1		2.7		70.5	20.5	2.1	3.5
73	Team Israel	58297	⬇ 4	⬇ 3			96.6		2.0	1.3
74	S147127	57767	⬆ 3	⬇ 2			27.6		14.2	58.2
75	Brno University of Technology	53717	⬇ 11	⬇ 2				19.2	64.3	16.5
76	GIMPS.NEO	52791	⬇ 8	⬇ 8					77.8	22.2
77	ComputerraRU	52336	⬇ 2	⬇ 1			19.7		71.3	9.0
78	Team Belgium	48887	⬇ 2	⬇ 4			1.1	8.2	35.1	16.1	39.6
79	LTT fans	42757	⬇ 18	⬇ 4			32.3		3.6		64.1
80	Team Viet Nam	42563	⬇ 2	⬇ 2			28.7		31.3	29.1	10.9
81	HardOCP	38034	⬆ 5	⬆ 3					75.3	24.7
82	Debian	36446	⬆ 7	⬆ 4	⬆ 1				98.5	1.5
83	Turku	36285	⬆ 47		⬆ 1				100.0
84	Team H	34992		⬇ 2	⬇ 2		12.2	0.1	87.1	0.6
85	huskers-gimps	34550	⬆ 2	⬆ 2					72.9	27.1
86	Hermessz	31437	⬇ 1	⬇ 1	⬆ 1		65.2		34.8
87	VIPR	29748	⬆ 31	⬆ 8	⬆ 5	⬆ 1	68.0		21.2	10.8
88	socal_prime	29133	⬇ 5	⬆ 1		⬆ 1			69.5	30.3	0.1
89	Team Austria	29102	⬇ 9	⬇ 9	⬇ 3	⬇ 2	93.4	0.7	5.9
90	Small-Team-2000	28837	⬇ 2	⬆ 1					10.9	89.1
91	ᕙ(⇀‸↼‶)ᕗ	28773	⬆ 20	⬆ 2			0.7		98.9	0.4
92	MES-Team	27521	⬇ 11	⬇ 4	⬇ 3		70.6	7.7		21.7
93	Channel 4	24835	⬆ 11	⬆ 1					82.9	17.1
94	The Fellowship of Infinity	24192	⬆ 7	⬆ 2	⬆ 1				99.5	0.5
95	Costa Rica	23392	⬇ 4	⬆ 2	⬆ 1				72.9	26.7
96	LimePrime	21935	⬇ 14	⬇ 6	⬇ 2			6.5	85.2	8.4
97	MurrayInfoSys	20160	⬆ 10	⬆ 5					66.7	33.3
98	Team Retired	19524	⬇ 5	⬆ 1					28.1	10.9
99	A Single Engineer	18853	⬇ 2	⬆ 4	⬆ 1	⬆ 1			74.0	26.0
100	PrimitiveRootsCircle	18712		⬆ 1	⬇ 1	⬇ 1	22.1		50.7	24.6	2.6
101	GIMPS.Portugal	17936	⬆ 8	⬆ 10	⬆ 4	⬆ 1	19.5	58.3		22.1
102	SpartaAlumni	17616	⬇ 3	⬆ 3	⬇ 1	⬇ 1			70.8	29.2
103	Ozzie Prime	16100	⬇ 8	⬇ 3	⬇ 1			3.9	43.8	15.1		37.2
104	Team Norway	14924	⬇ 12	⬆ 2	⬇ 1		80.6			5.1	14.2
105	Spain	14918	⬇ 9	⬆ 5	⬇ 1				62.8	37.2
106	SETI.Germany	14419	⬆ 10	⬆ 6	⬆ 1			6.6	22.0	71.4
107	NUST	14223	⬆ 29	⬆ 6	⬆ 2		16.4	74.6	5.9	3.0
108	Georgia Tech	13974	⬇ 54	⬇ 29	⬆ 2	⬆ 1			100.0
109	Portland State University	13899	⬇ 15	⬇ 5	⬆ 2	⬆ 1		32.8	51.8	15.4
110	Quantus	13677	⬇ 12	⬇ 3	⬇ 4	⬆ 1	8.9		17.2	27.8		46.2
111	Team Finland	13662	⬇ 58	⬇ 13	⬆ 1	⬆ 1	1.0		97.0		2.0
112	Nerdfighters for Mersenne Primes	13261	⬇ 9	⬇ 4	⬇ 4	⬇ 4			88.0	12.0
113	Aiblspitz	13031	⬆ 20	⬆ 13	⬆ 2		1.3	75.4	12.1	9.9	1.3
114	moeses	12587	⬇ 8	⬆ 2	⬇ 1				99.1	0.9
115	Team Slovenia	11903	⬇ 13	⬇ 1	⬆ 1	⬆ 1			71.8	28.2
116	Com Systems (RU)	11859	⬆ 27	⬆ 13	⬆ 2	⬆ 1			65.7	34.3
117	Mensa	11406		⬆ 1	⬇ 3	⬇ 2			82.7	17.3
118	MadPoo	11152	⬇ 28	⬇ 9	⬇ 1			42.1		57.9
119	Politeknik Banting, Selangor	10894	⬇ 9				90.1		7.3	2.6
120	GIMPS.Taiwan	10858	⬇ 15	⬇ 5					87.6	11.9	0.1
121	FREE ROBUX	10852	⬇ 2						100.0
122	Royal Military College of Canada	10691	⬇ 1	⬆ 1			89.7		7.9	2.4
123	Granada	10561	⬇ 11	⬇ 6			31.6		14.8	52.9
124	GIMPS Romania	9751	⬆ 22	⬆ 21	⬆ 21	⬆ 5	45.9		48.8	5.4
125	Syntony	9478	⬆ 3	⬆ 3	⬆ 3	⬇ 1				100.0
126	TurkishMath	9477	⬆ 1	⬆ 10		⬇ 1			83.7	16.3
127	RobotechResearch	9445	⬆ 55	⬆ 3		⬇ 1			42.6	57.4
128	JiBoTeam	9351	⬇ 2	⬆ 7	⬆ 1	⬇ 1				100.0
129	Die Zeitfinder	9325	⬇ 9	⬆ 5	⬆ 2	⬆ 1			91.7	8.3
130	Shaffer's Studio	8900	⬇ 1	⬆ 1	⬇ 5	⬇ 2			87.3	12.6
131	Hyperion	8375	⬇ 18	⬇ 9	⬇ 1					26.3
132	FreeBSD	8297	⬇ 9	⬇ 8			0.6		76.0	23.5
133	University of Waterloo	8296	⬆ 8	⬆ 6	⬆ 4				100.0
134	math.auth.gr	8222	⬆ 73	⬆ 51	⬆ 24				93.7	6.3
135	MES22-Team	8136	⬇ 21	⬇ 8	⬇ 2		100.0
136	Abacus	7915	⬇ 14	⬇ 16	⬇ 2				98.9	1.1
137	Triangle	7843	⬇ 12	⬇ 5	⬇ 2				99.0	1.0
138	Team Splunk	7605	⬇ 4		⬇ 2			28.1	71.9
139	Server66	7597	⬇ 8	⬇ 14	⬇ 15		100.0
140	Prime Rib	7336	⬇ 1	⬆ 2					96.9	3.1
141	irowiki	6992	⬇ 6	⬇ 4	⬇ 3					100.0
142	Brasil	6680	⬇ 5	⬇ 1	⬇ 3				81.8	18.1
143	SU Prime Pirates	6437	⬇ 3		⬇ 2				61.5	38.5
144	Team Christensen	5768	⬇ 2		⬇ 2					100.0
145	Elisabeth-von-Thadden-Schule	5757	⬇ 1	⬆ 1	⬇ 2				40.3	59.7
146	youngfun429	5662	⬇ 31	⬇ 13	⬇ 2				54.5	45.5
147	teamMALI	5162	⬇ 2	⬆ 3					75.5	24.5
148	Furry Primes	5084	⬇ 16	⬇ 8	⬇ 2		77.7			22.3
149	nmbarek_team	4953	⬇ 25		⬇ 1				99.8	0.2
150	Hong Kong GIMP	4909	⬆ 4	⬆ 1	⬇ 1				63.8	36.2
151	Crunching@EVGA	4888	⬆ 30	⬆ 4	⬆ 3				99.7	0.3
152	The_Dude_Abides	4832	⬇ 3	⬇ 5	⬇ 2		36.6			55.0
153	FactorMania	4783	⬆ 27	⬆ 5	⬆ 3			57.4			42.5
154	Danpi for GIMPS	4710	⬇ 1	⬇ 2	⬇ 3		100.0
155	México mágico	4207	⬆ 18	⬇ 1	⬇ 2				75.3	24.7
156	Olympic College	4079	⬆ 3		⬇ 1					100.0
157	zeit	4056	⬇ 7	⬇ 4	⬇ 5		1.9			98.1
158	Noam Karni Team	3962	⬆ 12	⬆ 3	⬇ 1				79.7	20.3
159	GIMPS.Hong Kong	3644	⬇ 1	⬆ 3			2.2		65.3	32.5
160	Korea.Prime	3637	⬆ 11						64.6	35.4
161	Kabylie	3492	⬇ 4	⬇ 4			15.3	4.2	44.6	35.9
162	Team_Brazil	2999	⬆ 1	⬆ 1			83.1	0.2		16.7
163	Arpan Sen Labs	2905	⬆ 72	⬆ 38	⬆ 10				43.7	56.3
164	Phi Kappa Theta	2820	⬇ 3		⬆ 1				56.0	44.0
165	KnightLight	2786	⬆ 48	⬆ 41	⬆ 40					99.9
166	3DCenter.org	2752	⬇ 15	⬇ 7	⬇ 2						100.0
167	I Love Canadian Natural Resources	2507	⬇ 3	⬇ 2	⬇ 1					100.0
168	Pi Rho	2499	⬆ 67	⬇ 2	⬇ 1				67.1	32.9
169	WSU Cougars	2486	⬇ 31	⬇ 21	⬇ 6				61.8	38.1
170	GIMPSMalaysia	2394	⬆ 19	⬇ 3	⬇ 2				66.8	33.2
171	VRS_SE	2361	⬇ 2	⬇ 3	⬇ 2				66.8	33.2
172	Saudi Primes	2268		⬇ 1	⬇ 2					100.0
173	GIMPS_KS	2199	⬆ 31	⬇ 1	⬇ 2				36.5	62.0	1.4
174	Obsidian	2082	⬆ 2		⬇ 2					100.0
175	Subprime Searches	2002	⬇ 10				87.2			12.8
176	The Prime Pioneers	1958	⬆ 10	⬇ 3			1.2	98.8
177	The Pensis	1869	⬇ 3	⬇ 1						100.0
178	GIMPS_IOM	1712			⬆ 1		100.0
179	YESHUA IS THE MESSIAH	1643	⬆ 56	⬆ 47	⬆ 18				100.0
180	F=dp/dt	1593	⬇ 5	⬇ 3	⬇ 2				99.3	0.6
181	San Francisco	1586	⬆ 2	⬇ 1	⬇ 1				100.0
182	ANDY	1582	⬇ 27	⬇ 1	⬇ 1				98.8	1.2
183	TunisianTeam	1561	⬇ 23	⬇ 13	⬇ 9				49.6	50.4
184	cr_colorado	1549	⬆ 13	⬇ 2	⬇ 2					100.0
185	International School of Beijing (ISB)	1544	⬇ 38	⬇ 16	⬇ 2				99.3	0.7
186	Zorin OS Crew	1470	⬇ 24	⬇ 7	⬇ 2				52.5	47.5
187	CZAsTc	1448	⬆ 46	⬇ 4	⬇ 2				99.5	0.4
188	Morocco	1338	⬆ 28	⬆ 1	⬇ 2					100.0
189	Byberg Nordic Prime	1047	⬆ 5	⬆ 7	⬇ 1	⬆ 1			74.6	25.4
190	His Dark Materials	1028	⬇ 13	⬇ 4	⬇ 1	⬆ 1				42.4	57.5
191	Therian Primes	1007	⬆ 26		⬇ 1	⬆ 1		14.6		52.4	33.0
192	Czech National Team	906	⬆ 9	⬇ 4	⬇ 5	⬇ 3	4.1		91.4	1.2	2.0
193	TimE4This	876	⬇ 8	⬇ 6	⬇ 2					100.0
194	Optimists Prime	860	⬇ 46	⬇ 10	⬇ 2			100.0
195	AWC	801	⬆ 40	⬇ 2	⬇ 2				100.0
196	GIMPS Asturias	794	⬇ 4	⬇ 2	⬇ 1				99.6	0.4
197	Weatopians	793	⬇ 4	⬇ 2	⬇ 1				99.7	0.3
198	hreid	776	⬇ 3	⬇ 1					100.0
199	alan145	710	⬇ 31	⬇ 9	⬇ 5		99.4			0.6
200	Join Us 😈	708	⬆ 8	⬇ 1	⬇ 1		100.0
201	SGDynamo Dresden	580	⬆ 1	⬇ 1	⬇ 1		100.0
202	PrimeObsession	539	⬆ 4		⬇ 1					100.0
203	London Computation Club	478	⬆ 7		⬇ 1					100.0
204	Team Dominik Radler	351	⬆ 7		⬇ 1		100.0
205	/r/counting	337	⬆ 21		⬇ 1
206	Yurunago	276	⬆ 29	⬆ 1						100.0
207	Vegan	275	⬆ 28	⬆ 19	⬆ 15					100.0
208	www.Adamek.biz	265	⬆ 7		⬇ 1					100.0
209	Math Teachers of the World	259	⬆ 9		⬇ 1				100.0
210	GIMPS Hams	253	⬆ 9		⬇ 1			100.0
211	DividerHunt	221	⬆ 12		⬇ 1		100.0
212	Manri Costa Rica	213	⬇ 21	⬆ 1	⬇ 1					100.0
213	30thousandwon	193	⬆ 12	⬆ 1	⬇ 1					100.0
214	Team Bulgaria	153	⬇ 11	⬆ 1	⬇ 1						100.0
215	miiro	150	⬆ 20	⬆ 1	⬇ 1		100.0
216	GIMPS.Peace	122	⬆ 11	⬆ 1	⬇ 1		44.7	55.3
217	TeamUbuntu	121	⬆ 11	⬆ 1	⬇ 1					100.0
218	sannerud.com	108	⬆ 14	⬆ 1	⬇ 1		43.1				19.4	37.5
219	PROMYS	23	⬆ 11	⬆ 2	⬇ 1						100.0
220	PARG team	21	⬆ 15	⬆ 2	⬇ 1						100.0
221	yfinder	1	⬆ 3	⬆ 4						100.0