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 2026-10-17 14:00 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	Ars Technica Team Prime Rib	198244692	⬆ 3					99.4		0.6
2	Slovakia	159516804	⬇ 1				0.3	88.4	0.4	0.1	10.8
3	PrimeNet	152081170					0.2	80.2	0.6	0.8	18.2
4	GIMPS.Russia	139749957	⬇ 2				0.9	0.1	0.3		98.7
5	-Too many Ones-	69500860	⬆ 1	⬆ 1				78.9			21.1
6	POLAND	68601149	⬇ 1	⬇ 1			1.5	93.9	0.6	0.1	3.8
7	Team#1	23007900					1.9	16.6	44.1	35.5	2.0
8	GIMPSChina	20095243					41.4	32.5	4.9	0.7	20.5
9	UCM-curtisc	13218342	⬆ 1						99.2	0.8
10	Numberphile	12641150	⬇ 1				3.2	18.3	4.7	1.9	71.9
11	Team-Deutschland	10812342					1.5	68.3	2.2	0.3	27.5
12	More Power!!!	8262905					18.5	73.5	3.8	3.3	1.0
13	GW's legions	6288882	⬆ 3	⬆ 2			0.1	1.7	89.9	4.2	4.0
14	Porta Kruse	6237480		⬇ 1			2.0	0.5			91.1	6.3
15	GPU to 72	6130712	⬆ 2	⬆ 1			42.3	39.5	3.2	2.9	11.8
16	TeamUK	5955486	⬇ 3	⬇ 2			44.5	1.7	22.3	2.1	29.4
17	tsc	4043722	⬆ 2				55.3	1.6	0.9	0.3	41.9
18	UW Eau Claire	3654141					91.1		6.5	2.4
19	UKRAINE	3628664	⬆ 1				0.8	5.7	87.6	5.9
20	Argentina	2563445	⬆ 1				92.1		7.9
21	NetBSD	2366654	⬆ 193	⬆ 192				8.5			91.5
22	GIMPS.Korea	2023649	⬆ 1	⬇ 1			87.2	4.3	3.3	0.7	4.5
23	Wikipedia	1711619	⬇ 1	⬇ 1			53.1	38.5	5.3	1.9	0.9
24	Dutch Power Cows	1285537	⬆ 3	⬇ 1			28.9	7.3	1.1	2.0	60.7
25	404 - "Primes not Found"	1108417	⬆ 4				89.6		10.3	0.1
26	MBAi.Cloud	810795	⬆ 2	⬆ 1					99.9	0.1
27	Swedes Of Primes	732218	⬇ 1	⬇ 1			2.3	75.8	18.2	3.7
28	GIMPS.USA	632378	⬆ 4	⬆ 1			43.7	33.8	17.1	3.5	1.7
29	unRAID	583102	⬆ 13	⬆ 14	⬆ 1			90.0	6.5	1.1	2.4
30	MATHSareREAL	554799		⬇ 2	⬇ 1		96.4		2.4	1.2
31	Buhr	472234		⬇ 1			39.7	7.5	16.1	5.8	30.9
32	citizenscience.ru	432117	⬆ 1				66.9	0.1	7.5	0.9	24.5
33	Colorado School of Mines	429134	⬆ 1	⬇ 2			81.0		17.1	1.9
34	MOXA	359911	⬆ 4	⬇ 1			100.0
35	GIMPS.Occitania	358063	⬇ 10	⬇ 11				17.4				82.6
36	Rechenkraft.net	343074	⬇ 1	⬇ 2				51.2	5.3	7.1	36.3
37	S485122	301237	⬆ 2	⬇ 2				95.0		5.0
38	nranks	295628	⬆ 3				25.5	0.4	2.5	0.3	71.4
39	GIMPS.Japan	288419	⬇ 2	⬇ 3			46.3		39.2	14.2	0.3
40	NanJing Tech	238438	⬆ 4				22.0		67.5	10.4
41	Terry Kim Team	227431	⬇ 5	⬇ 4			93.8		4.7	1.1
42	GIMPS Team Philippines	210198	⬆ 3				46.1		10.6	2.2	36.5
43	YahsTeam	203857	⬇ 3	⬇ 2			85.6		11.1	3.3
44	GIMPS.Portugal	161166	⬆ 11	⬆ 3	⬆ 1		51.2	47.4		1.4
45	IOTA	160868	⬆ 8	⬆ 3	⬇ 1		93.1		4.7	2.3
46	Team Tartan	155376	⬆ 2	⬇ 1					77.4	22.5
47	NerdyGirls	151163	⬇ 1	⬇ 3				42.2	5.7	52.1
48	Canada	145786	⬇ 1	⬇ 2			9.7	0.3	64.7	25.3
49	ComputerraRU	138801	⬆ 30	⬆ 6	⬆ 2		77.3	0.4	20.5	1.8
50	GIMPS.NZ	137064		⬇ 1	⬇ 1		78.9	0.2	13.1	7.8	0.1
51	Team China	134601		⬇ 1	⬇ 1		0.3		99.4	0.3
52	VIPR	112209	⬆ 4	⬇ 1			97.4		1.4	1.0
53	Wile E. Coyote	103344	⬆ 9	⬆ 3					68.0	0.1	31.9
54	UIUC	97647	⬆ 4	⬇ 1	⬆ 2	⬆ 1			67.2	32.8
55	GIMPS.France	97607	⬇ 1	⬆ 2	⬇ 1	⬇ 1	1.1	88.4	5.0	3.8	1.6
56	NUST	95184	⬆ 22	⬆ 2	⬆ 2	⬆ 1	55.5	43.1	0.9	0.5
57	AMD Users	93331		⬇ 3		⬆ 1	50.0	0.6	0.9	48.1	0.4
58	Unicamp	93048	⬇ 6	⬇ 6	⬇ 3	⬇ 2	69.2		30.5	0.3
59	SHADO	77108	⬆ 2	⬆ 1					64.0	17.4	11.9	0.5
60	Eratosthenes Sieve	71337	⬆ 5	⬆ 2					93.6	6.3
61	GIMPS China	70567	⬆ 2	⬆ 3			85.3		9.0	0.1	5.3
62	SASAKI	68315	⬇ 3	⬇ 1			100.0
63	Net-Work	68138	⬆ 1				6.6	1.2		0.8	78.6
64	S147127	66296	⬆ 3	⬆ 1	⬆ 1		32.7		35.1	32.2
65	Team_Italia	65266	⬆ 5	⬆ 1	⬇ 1		3.6	0.5	65.2	22.1	6.5	0.7
66	Esperanto	63824	⬆ 2	⬆ 3	⬆ 1			25.1	5.1	69.8
67	ParadoxZ Commando	63766	⬆ 2	⬆ 1	⬇ 1				72.5	27.5
68	Wisconsin	60897	⬇ 8	⬇ 1			21.5		42.8	35.6
69	EgyptianPolymaths	50613	⬆ 6	⬆ 1				78.7
70	Cap'n Entropy's Cavalcade of Wonderment	50421	⬆ 1	⬆ 1			62.5	9.0	24.1	4.3
71	AJ	46763	⬆ 5	⬆ 1					74.1	25.9
72	Aiblspitz	42907	⬆ 19	⬆ 4				93.0		7.0
73	Team Belgium	38679	⬆ 8	⬆ 5	⬆ 3	⬆ 2	1.3	2.5	37.1	21.3	37.7
74	Brno University of Technology	38131	⬆ 3		⬇ 1				74.2	25.8
75	Team Israel	38063	⬇ 3	⬇ 2	⬆ 2	⬆ 1	91.5		7.8	0.7
76	One Man Team	37995	⬇ 61	⬇ 1	⬇ 1	⬆ 1			99.9
77	Turku	36285	⬆ 6	⬆ 2	⬆ 1	⬆ 1			100.0
78	Hungary	35290	⬇ 4	⬇ 1	⬇ 4	⬇ 5			6.9	0.7	92.3
79	ᕙ(⇀‸↼‶)ᕗ	33743	⬆ 10	⬆ 3			0.6		98.9	0.5
80	Hermessz	33057	⬆ 7	⬆ 3	⬆ 1		64.0		33.6	2.4
81	huskers-gimps	32150	⬆ 1	⬇ 1	⬇ 1				76.7	23.3
82	Team H	31303	⬆ 4	⬆ 3			15.1		84.4	0.5
83	MurrayInfoSys	29953	⬆ 13	⬆ 4					71.6	28.4
84	baraCUDA	29906	⬆ 6	⬆ 2	⬆ 1				100.0
85	Mensa	29708	⬆ 41	⬆ 16	⬆ 1	⬆ 1			74.9	25.1
86	Debian	29440	⬇ 1	⬇ 5	⬇ 2	⬇ 1			98.0	2.0
87	GIMPS.NEO	25454	⬇ 7	⬇ 3	⬆ 1				87.1	12.9
88	The Fellowship of Infinity	25152	⬆ 4		⬆ 2	⬆ 3			99.5	0.5
89	OverclockerAustralia	25011	⬇ 40	⬇ 30						78.5
90	HardOCP	24766	⬇ 2	⬇ 1	⬇ 3	⬇ 2			70.3	29.7
91	Channel 4	24726	⬆ 2	⬆ 1		⬇ 1			80.7	19.3
92	Small-Team-2000	23993	⬆ 3	⬇ 1	⬆ 1					99.5	0.5
93	Costa Rica	22765	⬆ 1		⬇ 1				84.9	14.5
94	Georgia Tech	20319	⬆ 4		⬆ 1				100.0
95	Com Systems (RU)	19447	⬆ 7	⬆ 1	⬆ 2				73.3	26.6	0.1
96	randomteam	19223	⬇ 30	⬆ 2							100.0
97	socal_prime	18453		⬇ 2	⬆ 1				72.8	27.2
98	Team Viet Nam	18175	⬇ 14	⬇ 8	⬇ 4		67.2		12.9	19.9
99	GIMPS Romania	17483	⬆ 4	⬆ 1			73.6		23.5	3.0
100	RobotechResearch	17418	⬆ 8	⬆ 2	⬆ 2				50.4	49.6
101	SpartaAlumni	17290	⬆ 4	⬆ 4	⬇ 1				64.0	36.0
102	LimePrime	15875	⬇ 3	⬇ 3	⬇ 1	⬆ 1			90.0	10.0
103	PrimitiveRootsCircle	15536	⬆ 1	⬆ 3	⬆ 2	⬆ 1	4.0		67.3	27.5	1.2
104	TurkishMath	15378	⬆ 2		⬇ 1	⬆ 1			94.9	5.1
105	A Single Engineer	15252	⬇ 4	⬇ 2	⬇ 1	⬇ 3			72.0	28.0
106	Prime Rib	13799	⬆ 27	⬆ 10					98.4	1.6
107	moeses	13468	⬆ 2						98.9	1.0
108	The_Dude_Abides	12827	⬆ 23	⬆ 7					25.9	59.8	0.8
109	GIMPS.Taiwan	12281	⬆ 27	⬆ 25	⬆ 1				89.1	10.5	0.1
110	Portland State University	11861	⬆ 2	⬇ 1	⬇ 1			31.8	63.4	4.8
111	FREE ROBUX	10852	⬆ 2	⬇ 1					100.0
112	Royal Military College of Canada	10691	⬆ 4	⬇ 1			89.7		7.9	2.4
113	Arpan Sen Labs	9915	⬆ 24	⬆ 10	⬆ 5				53.3	46.7
114	University of Waterloo	9840	⬆ 5						94.5	5.5
115	Morocco	9584	⬆ 30	⬆ 16					68.8	31.2
116	Syntony	9394	⬆ 5	⬆ 4	⬆ 1					100.0
117	Team Retired	9164	⬇ 17	⬇ 9	⬇ 1					1.0
118	LTT fans	9056	⬆ 4	⬆ 3	⬆ 1		92.5				7.5
119	Ozzie Prime	8762	⬇ 8	⬇ 7	⬇ 6				9.2	15.8		75.0
120	Shaffer's Studio	8681		⬇ 2					90.4	9.4
121	Team Slovenia	8663	⬇ 6	⬇ 2					63.4	36.6
122	math.auth.gr	8551	⬆ 2	⬆ 3					100.0
123	Pavlicin	8407	⬆ 2	⬆ 4			79.7	0.1	20.2
124	JiBoTeam	8351	⬇ 1		⬆ 1					100.0
125	FreeBSD	8244	⬆ 7	⬆ 5	⬆ 1				69.1	30.9
126	SETI.USA	7843	⬆ 88	⬆ 25	⬆ 4				64.7	35.3
127	Team Finland	7555	⬇ 10	⬇ 14	⬇ 3		3.0		93.5		3.5
128	Spain	7524	⬇ 21						73.1	26.9
129	Nerdfighters for Mersenne Primes	7456	⬇ 15	⬇ 7	⬇ 2				96.2	3.8
130	Die Zeitfinder	7337	⬇ 1	⬆ 2	⬇ 1				89.4	10.6
131	SETI.Germany	7260	⬇ 4	⬇ 2						100.0
132	México mágico	7228	⬆ 11	⬆ 12					88.7	11.2
133	Server66	7214	⬇ 5	⬆ 2	⬆ 1		100.0
134	The Court of the Math Jester	7119	⬆ 80	⬆ 30	⬆ 7		7.7		84.6	7.8
135	Granada	6899	⬇ 5	⬇ 2	⬇ 2		31.2		23.0	45.7
136	FactorMania	6572	⬆ 2		⬇ 1			56.9			43.1
137	Brasil	6430	⬆ 2	⬆ 3	⬆ 5	⬆ 3			80.9	18.9
138	Triangle	6404	⬇ 4	⬇ 1	⬇ 2	⬇ 1			98.8	1.2
139	irowiki	6116	⬆ 3	⬆ 4		⬇ 1				100.0
140	Team Bulgaria	6074	⬆ 43	⬆ 15		⬇ 1			68.3	30.9	0.7
141	Team Christensen	5924			⬇ 3					100.0
142	Abacus	5572	⬇ 7	⬇ 4	⬆ 1				98.8	1.2
143	Korea.Prime	5555	⬆ 1	⬇ 4	⬇ 6				71.3	28.7
144	SpongeBob SquarePants	5394	⬇ 120	⬇ 105	⬆ 1				60.0	40.0
145	KnightLight	4941	⬆ 1	⬆ 1	⬆ 1					100.0
146	DePaul MAT 141	4934	⬆ 3	⬆ 1	⬆ 1				99.6	0.4
147	Crunching@EVGA	4888	⬆ 3	⬆ 1	⬆ 1				99.7	0.3
148	Phi Kappa Theta	4754	⬆ 6	⬇ 3	⬇ 4	⬆ 1			71.0	28.9
149	YESHUA IS THE MESSIAH	4648	⬆ 2	⬆ 1	⬆ 2	⬆ 1			99.2	0.8
150	Hong Kong GIMP	4520	⬆ 2	⬇ 1	⬆ 2	⬆ 1			70.8	29.1
151	teamMALI	4512	⬇ 4	⬇ 9	⬇ 1	⬇ 3			88.7	11.3
152	Politeknik Banting, Selangor	4380	⬆ 5	⬆ 2	⬇ 3		100.0
153	Catalunya Team	3707	⬆ 61	⬆ 14	⬆ 1				91.8	8.2
154	Noam Karni Team	3702	⬇ 1	⬇ 2	⬆ 1				85.3	14.7
155	Team Norway	2926	⬇ 15	⬇ 2	⬆ 1		71.0			8.8	19.4
156	Denmark	2800	⬆ 58	⬆ 33	⬆ 1				60.5	39.5
157	Quantus	2519	⬇ 47	⬇ 40	⬆ 1		48.2		31.7	20.1
158	Pi Rho	2499	⬆ 2	⬇ 1	⬆ 1				67.1	32.9
159	cr_colorado	2348	⬆ 14	⬆ 11	⬆ 3					100.0
160	CZAsTc	2288	⬆ 3		⬆ 3				99.6	0.4
161	The Planetary Society	2237	⬆ 16		⬆ 3				76.1	23.9
162	alan145	2212	⬆ 49	⬆ 24	⬆ 7	⬆ 2	78.7	7.0			12.6
163	Team Austria	2199	⬆ 1	⬇ 1	⬆ 2	⬇ 1	12.8	9.5	77.7
164	GIMPS_KS	2199	⬆ 1	⬇ 1	⬆ 2	⬇ 1			36.5	62.0	1.4
165	GIMPS.Hong Kong	2153	⬇ 6	⬇ 7	⬇ 4		1.6		38.9	59.5
166	GIMPSMalaysia	2130	⬇ 5	⬇ 7	⬇ 6				75.0	24.9
167	Olympic College	2074	⬇ 9	⬇ 11						100.0
168	Azerbaijan	2000	⬆ 46	⬆ 11	⬆ 8				42.9	56.1	1.0
169	The Prime Pioneers	1919	⬇ 1	⬇ 4	⬇ 1			100.0
170	Subprime Searches	1756	⬆ 29	⬆ 31			85.4			14.6
171	Timesc	1711	⬆ 43	⬆ 11					100.0
172	Obsidian	1579	⬆ 2	⬇ 6						100.0
173	I Love Canadian Natural Resources	1542	⬆ 2	⬇ 2						100.0
174	Vegan	1384	⬆ 22	⬇ 1					60.9	39.1
175	zeit	1267	⬇ 13	⬇ 7			16.8			83.2
176	Amserver	1066	⬆ 2	⬇ 2	⬆ 1		100.0
177	Elisabeth-von-Thadden-Schule	1015	⬇ 22		⬆ 2				76.2	23.8
178	Therian Primes	1007	⬆ 4		⬆ 2			14.6		52.4	33.0
179	RafaÅ‚ HacuÅ›	860	⬆ 6	⬆ 1	⬆ 2				100.0
180	Czech National Team	857	⬆ 4	⬆ 1	⬆ 2				96.7	0.2	1.8
181	UMD University of Maryland Prime Hunters	850	⬆ 33	⬆ 2	⬆ 2				100.0
182	PARG team	838	⬆ 9	⬆ 6	⬆ 2					97.4	2.6
183	AWC	801	⬆ 3	⬆ 1	⬆ 2				100.0
184	hreid	799	⬇ 12	⬇ 15	⬆ 2				100.0
185	VRS_SE	795	⬇ 15	⬇ 10	⬆ 2				98.9	1.1
186	Hyperion	642	⬇ 30	⬇ 14	⬆ 2					6.3
187	SGDynamo Dresden	579	⬆ 3	⬆ 3	⬆ 2		100.0
188	Join Us 😈	543	⬇ 9	⬆ 3	⬆ 2		35.2			64.8
189	PrimeObsession	539	⬆ 3	⬆ 3	⬆ 2					100.0
190	Much prime! (wow)	532	⬆ 24	⬆ 3	⬆ 2					100.0
191	Furry Primes	514	⬇ 24	⬆ 3	⬆ 2					100.0
192	GIMPS.Romania	422	⬆ 1	⬆ 3	⬆ 2				100.0
193	LIKN	285	⬆ 21	⬆ 3	⬆ 3					99.9
194	Yurunago	276	⬆ 1	⬆ 3	⬆ 3					100.0
195	Byberg Nordic Prime	265	⬆ 2	⬆ 3	⬆ 3					100.0
196	FDY	265	⬆ 2	⬆ 3	⬆ 3					100.0
197	youngfun429	256	⬇ 17	⬇ 21	⬇ 19					100.0
198	miiro	240	⬆ 4	⬆ 4	⬆ 3		100.0
199	/r/counting	184	⬆ 8	⬆ 5	⬆ 3
200	Optimists Prime	162	⬆ 14	⬆ 13	⬆ 6			100.0
201	GIMPS.Peace	122	⬆ 8	⬆ 4	⬆ 3		44.7	55.3
202	sannerud.com	110	⬆ 8	⬆ 6	⬆ 3		42.4				20.7	36.9
203	DividerHunt	92	⬆ 2				100.0
204	Kabylie	61	⬇ 38	⬇ 17	⬇ 9		100.0
205	Team Dominik Radler	31	⬆ 3	⬆ 5	⬆ 2		100.0
206	GIMPS_IOM	19	⬇ 2	⬆ 5	⬆ 3		100.0
207	His Dark Materials	12	⬇ 13		⬆ 1						100.0
208	yfinder	0	⬆ 5	⬆ 4	⬆ 2					100.0
209	TunisianTeam	0	⬇ 28	⬇ 9	⬇ 9