La Conjectura de Goldbach afirma que "Tot nombre enter parell superior a 2 es pot escriure com a suma de dos nombres primers" Aquesta conjectura, encara per desmostrar en general, el 2013 es va demostrar l'anomenada conjectura feble de Goldbach 271 anys després de la seva formulació pel matemàtic prussià Christian Goldbach el 1742. Posem alguns exemples: 6=3+3 12=5+7 42=5+37=11+31=13+29=19+23 Aquest projecte és dins dels materials que trobareu a http://ja.cat/matsnapdata:image/png;base64,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:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAeAAAAFoCAYAAACPNyggAAACtUlEQVR4nO3BMQEAAADCoPVPbQwfoAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA+Bo3+AAF/RMkcAAAAAElFTkSuQmCC2468249.6789693934968852,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997,1009,1013,1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,1229,1231,1237,1249,1259,1277,1279,1283,1289,1291,1297,1301,1303,1307,1319,1321,1327,1361,1367,1373,1381,1399,1409,1423,1427,1429,1433,1439,1447,1451,1453,1459,1471,1481,1483,1487,1489,1493,1499,1511,1523,1531,1543,1549,1553,1559,1567,1571,1579,1583,1597,1601,1607,1609,1613,1619,1621,1627,1637,1657,1663,1667,1669,1693,1697,1699,1709,1721,1723,1733,1741,1747,1753,1759,1777,1783,1787,1789,1801,1811,1823,1831,1847,1861,1867,1871,1873,1877,1879,1889,1901,1907,1913,1931,1933,1949,1951,1973,1979,1987,1993,1997,1999,2003,2011,2017,2027,2029,2039,2053,2063,2069,2081,2083,2087,2089,2099,2111,2113,2129,2131,2137,2141,2143,2153,2161,2179,2203,2207,2213,2221,2237,2239,2243,2251,2267,2269,2273,2281,2287,2293,2297,2309,2311,2333,2339,2341,2347,2351,2357,2371,2377,2381,2383,2389,2393,2399,2411,2417,2423,2437,2441,2447,2459,2467300