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 2026-04-16 13:00 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	834543035					0.2		0.1		99.7
2	Slovakia	770694169					0.1	98.6	0.1		1.2
3	PrimeNet	337626115		⬆ 1			0.1	97.4	0.3	0.4	1.9
4	POLAND	211087677		⬇ 1			0.5	97.4	0.3	0.1	1.7
5	-Too many Ones-	159923924					0.1	90.6			9.3
6	Ars Technica Team Prime Rib	111631857						99.0		0.9
7	unRAID	33422843						99.7	0.3
8	GIMPSChina	21879364					70.6	20.0	4.0	0.6	4.8
9	One Man Team	13939806		⬆ 1				99.5	0.5
10	GW's legions	13019494	⬆ 1	⬆ 1			0.1	0.8	33.3	1.3	64.5
11	Team-Deutschland	12224311	⬆ 1	⬆ 2			3.0	32.2	0.5	0.1	64.1
12	UCM-curtisc	11799545	⬆ 1						99.3	0.7
13	More Power!!!	11202799	⬇ 3	⬇ 4			17.1	71.3	2.5	1.4	7.7
14	szerverem.hu	11084633	⬆ 2	⬆ 1			3.8	29.4	59.3	3.4	4.1
15	TeamUK	7581168	⬇ 1	⬇ 1			43.7	3.7	17.9	1.3	33.2	0.1
16	Porta Kruse	6411510	⬇ 1				2.0	0.4			91.4	6.1
17	GPU to 72	4679937					52.9	26.8	0.5	3.9	15.7
18	Numberphile	2742441	⬆ 1	⬆ 1			24.7	44.5	23.1	6.6	0.8
19	tsc	2666018	⬆ 2	⬆ 1	⬆ 1		74.2	4.5	1.3	0.3	19.7
20	SpongeBob SquarePants	2570896	⬇ 2	⬇ 2	⬇ 1			31.1	59.2	9.7
21	UW Eau Claire	2364629	⬆ 36	⬆ 3			87.2		9.5	3.4
22	UKRAINE	2152944		⬇ 1			22.1	12.1	49.8	15.9
23	Wikipedia	2037197		⬇ 1			60.1	32.7	4.1	2.1	0.8
24	Dutch Power Cows	1584784	⬇ 4	⬇ 1			30.5	27.0	1.4	1.6	39.6
25	GIMPS.USA	1508230		⬆ 1			10.4	0.6	4.5	1.5	82.8
26	GIMPS.Japan	1350847		⬆ 1			6.0		9.2	2.4	82.3
27	Swedes Of Primes	1326384	⬇ 3	⬇ 2			0.5	81.5	15.2	2.7
28	GIMPS.Occitania	1204339	⬇ 1					4.4				95.6
29	GIMPS.Korea	896191	⬆ 6				89.2	4.8	4.9	0.9	0.1
30	MBAi.Cloud	759204							99.9	0.1
31	MATHSareREAL	627005	⬇ 2				95.9		2.9	1.2
32	Argentina	574125	⬆ 202	⬆ 48	⬆ 15	⬆ 2	79.6		20.4
33	citizenscience.ru	546474	⬇ 1		⬇ 1	⬇ 1	87.8	3.5	4.2	1.0	2.9	0.5
34	MOXA	520358	⬇ 6	⬇ 2	⬇ 1	⬇ 1	98.9		0.7	0.3
35	Buhr	454484	⬇ 1	⬆ 1	⬇ 1		57.0	3.8	18.3	5.7	15.1
36	Rechenkraft.net	427243	⬇ 5	⬇ 2	⬇ 1		2.6	56.3	3.8	5.5	31.2	0.6
37	Terry Kim Team	421867	⬇ 4	⬇ 2	⬇ 1		97.0		2.1	0.6
38	S485122	308020	⬇ 1	⬇ 1	⬇ 1			95.0		5.0
39	Smoke-it	265746	⬇ 3	⬇ 1	⬇ 1		90.5	7.1	1.8
40	Colorado School of Mines	255896	⬆ 28	⬆ 6	⬇ 1		92.8		5.5	1.7
41	YahsTeam	212820	⬇ 2	⬇ 2			88.8		9.3	1.9
42	randomteam	208173	⬆ 1	⬇ 2	⬇ 2						100.0
43	GIMPS Team Philippines	205502	⬆ 1	⬇ 1	⬇ 1		66.0		5.7	1.8	23.9
44	NerdyGirls	201966	⬇ 6	⬇ 3	⬇ 1			42.2	7.2	50.5
45	nranks	197095	⬆ 1		⬇ 1		36.7	0.6	3.6	0.4	58.7
46	404 - "Primes not Found"	196167	⬆ 13	⬇ 3	⬆ 2		85.1		14.9
47	Canada	189544	⬇ 6	⬇ 3	⬇ 2			2.7	66.8	30.2
48	Team Tartan	185286	⬇ 6	⬇ 1	⬇ 2				76.8	23.2
49	OverclockerAustralia	150709	⬇ 2	⬇ 1			58.3		20.7	17.5
50	GIMPS.NZ	124884	⬇ 1	⬆ 2			79.5		9.9	10.5
51	Team China	122814	⬇ 3		⬆ 2				99.7	0.3
52	Unicamp	122447	⬆ 3	⬆ 1	⬆ 2		70.8	0.1	24.5	4.7
53	GIMPS China	120513	⬇ 13	⬇ 4	⬇ 2		91.6		4.2		3.9
54	BitMEX Research	118217	⬇ 9	⬇ 4	⬇ 2				96.0	4.0
55	NanJing Tech	116999	⬆ 48	⬆ 23	⬆ 4		24.7		69.9	5.4
56	SASAKI	110658	⬇ 4	⬇ 2	⬇ 1		100.0
57	GIMPS.France	107870	⬆ 8	⬆ 1	⬇ 1		10.3	63.0	3.7	9.9	12.8
58	Wisconsin	97402	⬇ 7	⬇ 2			47.0		28.9	24.1
59	EgyptianPolymaths	94023	⬇ 6	⬇ 4	⬇ 2			45.9			47.3
60	Cap'n Entropy's Cavalcade of Wonderment	92382	⬇ 10	⬇ 3			75.4	5.8	16.5	2.2
61	UIUC	84611	⬆ 5		⬆ 1				69.2	30.8
62	SHADO	82811	⬇ 2	⬇ 3	⬇ 1				63.8	17.6	11.1	1.8
63	AMD Users	82344	⬆ 9	⬆ 1			56.6	0.7	11.6	30.6	0.5
64	Net-Work	76770	⬇ 2	⬇ 2			3.8	1.8			86.6
65	Eratosthenes Sieve	75382	⬇ 1	⬇ 2			0.7		95.4	3.8
66	IOTA	74338	⬆ 168	⬆ 10	⬆ 2		95.5		2.3	2.2
67	Esperanto	68835	⬇ 4	⬇ 2	⬇ 1			25.6	6.9	67.3	0.2
68	Wile E. Coyote	65274	⬆ 10	⬆ 1	⬆ 2	⬆ 1			76.5	1.3	22.1
69	AJ	65226	⬆ 5	⬇ 3		⬇ 1			75.3	24.7
70	Hungary	63987	⬇ 12	⬇ 10	⬇ 3		0.5		2.6	2.0	94.6
71	Team_Italia	59928	⬆ 2		⬆ 1		2.7		70.5	20.4	2.1	3.5
72	ParadoxZ Commando	59643	⬇ 1	⬇ 5	⬇ 1				72.6	27.4
73	Team Israel	58697	⬇ 3	⬇ 3			96.0		2.7	1.3
74	S147127	57906	⬆ 3	⬇ 2			28.0		14.2	57.8
75	GIMPS.NEO	52648	⬇ 6	⬇ 7	⬆ 1				78.2	21.8
76	Brno University of Technology	52017	⬇ 9	⬇ 3	⬇ 1			16.5	66.4	17.1
77	ComputerraRU	51626	⬇ 1				20.0		70.9	9.1
78	Team Belgium	49744	⬇ 3	⬇ 4			1.1	8.1	36.2	16.3	38.4
79	Team Viet Nam	42563			⬆ 1	⬆ 1	28.7		31.3	29.1	10.9
80	LTT fans	41885	⬇ 19	⬇ 5	⬇ 1	⬇ 1	30.9		3.7		65.4
81	HardOCP	38034	⬆ 5	⬆ 4					75.3	24.7
82	Debian	36446	⬆ 7	⬆ 2					98.5	1.5
83	Turku	36285	⬆ 43	⬇ 1					100.0
84	huskers-gimps	35343	⬆ 3	⬆ 3	⬆ 1				73.5	26.5
85	Team H	34238	⬇ 2	⬇ 2	⬇ 1		12.7		86.7	0.6
86	Hermessz	32533	⬇ 1	⬆ 2	⬆ 1		64.0		36.0
87	VIPR	30041	⬆ 31	⬆ 8	⬆ 2		70.9		18.4	10.7
88	socal_prime	28916	⬇ 4	⬆ 2					70.0	29.8	0.1
89	ᕙ(⇀‸↼‶)ᕗ	28774	⬆ 21	⬆ 4	⬆ 2	⬆ 1	0.7		98.9	0.4
90	Small-Team-2000	28549	⬇ 2	⬆ 1		⬇ 1			11.0	89.0
91	MES-Team	26720	⬇ 10	⬇ 2	⬆ 1	⬆ 1	70.1	7.5		22.4
92	Team Austria	26695	⬇ 12	⬇ 11	⬇ 6	⬇ 1	92.8	0.8	6.4
93	GIMPS.Portugal	25918	⬆ 15	⬆ 17	⬆ 12	⬆ 1	32.9	47.5		19.6
94	Channel 4	25624	⬆ 12		⬇ 1	⬇ 1			83.4	16.6
95	The Fellowship of Infinity	24196	⬆ 4	⬆ 1	⬇ 1				99.5	0.5
96	Costa Rica	23392	⬇ 5	⬆ 1	⬇ 1				72.9	26.7
97	LimePrime	21169	⬇ 15	⬇ 5	⬇ 1			6.7	84.7	8.7
98	MurrayInfoSys	20158	⬆ 9	⬆ 1	⬇ 1				66.7	33.3
99	Team Retired	19462	⬇ 6	⬇ 1	⬇ 1				28.2	10.9
100	PrimitiveRootsCircle	18864	⬇ 5		⬇ 1		21.4		50.3	25.8	2.6
101	A Single Engineer	18853	⬇ 4	⬆ 1	⬇ 1				74.0	26.0
102	SpartaAlumni	17612	⬇ 2	⬆ 2	⬇ 1				70.8	29.2
103	Georgia Tech	14757	⬇ 49	⬇ 17	⬆ 6	⬆ 2			100.0
104	Ozzie Prime	14529	⬇ 8	⬇ 3	⬇ 2	⬇ 1		4.0	38.0	16.7		41.3
105	Spain	14423	⬇ 4	⬆ 4	⬇ 1	⬇ 1			64.9	35.1
106	SETI.Germany	14419	⬆ 10	⬆ 5				6.6	22.0	71.4
107	NUST	14223	⬆ 25	⬆ 7	⬆ 1		16.4	74.6	5.9	3.0
108	Portland State University	13861	⬇ 14	⬇ 5	⬆ 2			32.7	51.9	15.4
109	Quantus	13676	⬇ 11	⬇ 3	⬆ 2	⬆ 1	8.9		17.2	27.8		46.2
110	Team Finland	13640	⬇ 54	⬆ 3	⬆ 2	⬆ 1	0.8		97.2		2.0
111	Team Norway	13572	⬇ 19	⬇ 6	⬇ 8	⬇ 2	80.7			3.8	15.4
112	Nerdfighters for Mersenne Primes	13261	⬇ 8	⬇ 4	⬇ 5				88.0	12.0
113	Aiblspitz	13175	⬆ 21	⬆ 10			1.3	75.7	12.0	9.8	1.3
114	moeses	12587	⬇ 2	⬆ 2					99.1	0.9
115	Com Systems (RU)	12113	⬆ 27	⬆ 7	⬆ 2				64.3	35.6
116	GIMPS Romania	11915	⬆ 30	⬆ 29	⬆ 22	⬆ 1	55.7		39.9	4.4
117	Team Slovenia	11893	⬇ 15	⬇ 5	⬇ 1	⬇ 1			71.9	28.1
118	MadPoo	11152	⬇ 28	⬇ 11				42.1		57.9
119	GIMPS.Taiwan	10858	⬇ 14	⬇ 2	⬆ 1	⬆ 1			87.6	11.9	0.1
120	FREE ROBUX	10852	⬇ 1		⬆ 1	⬆ 1			100.0
121	Mensa	10744	⬇ 4	⬇ 6	⬇ 6	⬇ 2			87.8	12.2
122	Royal Military College of Canada	10691	⬇ 1	⬇ 1		⬆ 1	89.7		7.9	2.4
123	Politeknik Banting, Selangor	10669	⬇ 14	⬇ 5	⬇ 4	⬇ 1	89.9		7.4	2.7
124	Granada	10500	⬇ 13	⬇ 5	⬇ 1		31.2		14.9	53.2
125	Syntony	9729	⬆ 2	⬆ 3	⬇ 1					100.0
126	TurkishMath	9477	⬆ 3	⬆ 10	⬇ 1				83.7	16.3
127	RobotechResearch	9445	⬆ 57	⬆ 2	⬇ 1				42.6	57.4
128	JiBoTeam	9351		⬆ 4	⬇ 1					100.0
129	Die Zeitfinder	9325	⬇ 9	⬆ 5	⬆ 1				91.7	8.3
130	Shaffer's Studio	8895			⬇ 2				87.3	12.5
131	Abacus	8708	⬇ 9	⬆ 4	⬆ 2				99.0	1.0
132	FreeBSD	8297	⬇ 9	⬇ 8	⬇ 1	⬆ 1	0.6		76.0	23.5
133	math.auth.gr	8222	⬆ 74	⬆ 52	⬆ 6	⬆ 1			93.7	6.3
134	MES22-Team	8136	⬇ 20	⬇ 7	⬇ 2	⬆ 1	100.0
135	Hyperion	8027	⬇ 22	⬇ 10	⬇ 6	⬇ 3				24.0
136	Triangle	7839	⬇ 11	⬇ 5	⬇ 2				99.0	1.0
137	Team Splunk	7605	⬇ 1	⬆ 1	⬇ 2			28.1	71.9
138	Server66	7536	⬇ 7	⬇ 12	⬇ 2		100.0
139	University of Waterloo	7519	⬆ 2		⬇ 2				100.0
140	Prime Rib	7343	⬇ 1	⬆ 2					96.8	3.2
141	irowiki	6783	⬇ 6	⬇ 4						100.0
142	Brasil	6685	⬇ 5	⬇ 1					81.7	18.2
143	SU Prime Pirates	6437	⬇ 3						61.5	38.5
144	Team Christensen	6019	⬆ 1							100.0
145	Elisabeth-von-Thadden-Schule	5757	⬇ 1	⬆ 1					40.3	59.7
146	youngfun429	5435	⬇ 31	⬇ 13					56.8	43.2
147	teamMALI	5162	⬇ 4	⬆ 3					75.5	24.5
148	Furry Primes	5008	⬇ 15	⬇ 8			77.4			22.6
149	nmbarek_team	4953	⬇ 25						99.8	0.2
150	Crunching@EVGA	4888	⬆ 32	⬆ 5	⬆ 1	⬆ 1			99.7	0.3
151	The_Dude_Abides	4822	⬇ 2	⬇ 4	⬆ 1	⬆ 1	36.7			55.1
152	FactorMania	4783	⬆ 23	⬆ 5	⬆ 2	⬆ 1		57.4			42.5
153	Danpi for GIMPS	4710	⬇ 1	⬇ 1		⬆ 1	100.0
154	Hong Kong GIMP	4692	⬆ 1	⬇ 3	⬇ 4	⬇ 4			66.7	33.3
155	México mágico	4207	⬆ 19	⬇ 1	⬆ 1				75.3	24.7
156	Olympic College	4079	⬆ 2		⬆ 1					100.0
157	zeit	4056	⬇ 7	⬇ 4	⬇ 2		1.9			98.1
158	Noam Karni Team	3962	⬆ 10	⬆ 3					79.7	20.3
159	Phi Kappa Theta	3650	⬆ 2	⬆ 4	⬆ 5				66.2	33.8
160	GIMPS.Hong Kong	3644	⬇ 3	⬆ 4	⬇ 1		2.2		65.3	32.5
161	Korea.Prime	3637	⬆ 9	⬇ 2	⬇ 1				64.6	35.4
162	Kabylie	3477	⬇ 6	⬇ 4	⬇ 1		14.9	4.2	44.8	36.1
163	Team_Brazil	2999		⬇ 1	⬇ 1		83.1	0.2		16.7
164	Arpan Sen Labs	2912	⬆ 70	⬆ 37	⬆ 10				43.6	56.4
165	KnightLight	2786	⬆ 47	⬆ 41						99.9
166	3DCenter.org	2651	⬇ 15	⬇ 6	⬇ 3						100.0
167	I Love Canadian Natural Resources	2507	⬇ 3	⬇ 2						100.0
168	Pi Rho	2499	⬆ 66	⬇ 2					67.1	32.9
169	GIMPSMalaysia	2394	⬆ 4	⬇ 2					66.8	33.2
170	VRS_SE	2361	⬇ 1	⬇ 2					66.8	33.2
171	WSU Cougars	2229	⬇ 33	⬇ 23	⬇ 5	⬆ 1			68.9	31.0
172	GIMPS_KS	2199	⬆ 20			⬆ 1			36.5	62.0	1.4
173	The Prime Pioneers	1958	⬆ 10	⬆ 1	⬆ 3	⬆ 1	1.2	98.8
174	The Pensis	1869	⬆ 2	⬆ 2	⬆ 3	⬆ 1				100.0
175	Subprime Searches	1808	⬇ 10			⬆ 1	85.9			14.1
176	GIMPS_IOM	1712	⬆ 4	⬆ 2	⬆ 2	⬆ 1	100.0
177	Obsidian	1700	⬆ 1	⬇ 4	⬇ 4	⬆ 1				100.0
178	YESHUA IS THE MESSIAH	1651	⬆ 56	⬆ 48	⬆ 1	⬆ 1			99.5	0.5
179	F=dp/dt	1593	⬇ 2	⬇ 2	⬆ 1	⬆ 1			99.3	0.6
180	San Francisco	1586	⬆ 5	⬇ 1	⬆ 1	⬆ 1			100.0
181	cr_colorado	1549	⬆ 5		⬆ 3	⬆ 1				100.0
182	International School of Beijing (ISB)	1543	⬇ 35	⬇ 13	⬆ 3	⬆ 1			99.4	0.6
183	Saudi Primes	1513	⬇ 11	⬇ 12	⬇ 12	⬇ 12				100.0
184	Zorin OS Crew	1470	⬇ 22	⬇ 2	⬆ 2				52.5	47.5
185	CZAsTc	1448	⬆ 47	⬇ 2	⬆ 2				99.5	0.4
186	Morocco	1338	⬆ 20	⬆ 3	⬆ 2					100.0
187	TunisianTeam	1031	⬇ 27	⬇ 17	⬇ 4				75.0	25.0
188	His Dark Materials	1016	⬇ 9	⬇ 2	⬆ 3					42.9	57.0
189	Therian Primes	1007	⬆ 26	⬆ 1	⬆ 3			14.6		52.4	33.0
190	Czech National Team	906	⬆ 11	⬇ 2	⬇ 1		4.1		91.4	1.2	2.0
191	TimE4This	876	⬇ 3	⬇ 4	⬆ 2					100.0
192	Optimists Prime	860	⬇ 44	⬇ 8	⬆ 2			100.0
193	AWC	801	⬆ 41		⬆ 2				100.0
194	GIMPS Asturias	794	⬇ 1		⬆ 2				99.6	0.4
195	ANDY	793	⬇ 42	⬇ 15	⬇ 13				98.5	1.5
196	Weatopians	793	⬇ 2	⬇ 1	⬆ 1				99.7	0.3
197	hreid	776			⬆ 1				100.0
198	Join Us 😈	708	⬆ 10	⬆ 1	⬆ 2		100.0
199	alan145	665	⬇ 28	⬇ 8			99.3			0.7
200	SGDynamo Dresden	565	⬆ 2		⬆ 1		100.0
201	PrimeObsession	539	⬆ 4	⬆ 1	⬆ 1					100.0
202	London Computation Club	478	⬆ 7	⬆ 1	⬆ 1					100.0
203	Team Dominik Radler	351	⬆ 7	⬆ 1	⬆ 1		100.0
204	/r/counting	337	⬆ 20	⬆ 1	⬆ 1
205	Yurunago	276	⬆ 29	⬆ 2	⬆ 1					100.0
206	Vegan	275	⬆ 28	⬆ 20	⬆ 1					100.0
207	Byberg Nordic Prime	265	⬇ 12	⬇ 11	⬇ 17					100.0
208	www.Adamek.biz	265	⬆ 6							100.0
209	Math Teachers of the World	259	⬆ 7						100.0
210	GIMPS Hams	253	⬆ 7					100.0
211	DividerHunt	221	⬆ 10				100.0
212	Manri Costa Rica	213	⬇ 21	⬆ 1						100.0
213	30thousandwon	193	⬆ 12	⬆ 1						100.0
214	Team Bulgaria	152	⬇ 11	⬆ 1							100.0
215	miiro	150	⬆ 19	⬆ 1			100.0
216	GIMPS.Peace	122	⬆ 10	⬆ 1			44.7	55.3
217	TeamUbuntu	121	⬆ 10	⬆ 1						100.0
218	sannerud.com	108	⬆ 13	⬆ 1			43.1				19.4	37.5
219	PROMYS	23	⬆ 10	⬆ 2							100.0
220	PARG team	21	⬆ 14	⬆ 2							100.0
221	yfinder	1	⬆ 1	⬆ 4						100.0