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Four-Digit Prime Numbers by Tens (Part 1: 1000-2000)
You will be given four four-digit numbers that differ only by the last digit being 1, 3, 7, or 9. Answer which ones are prime numbers.
Example: If you are given "21, 23, 27, 29", only 23 and 29 are prime numbers, so you should choose "3, 9"
Example: If you are given "21, 23, 27, 29", only 23 and 29 are prime numbers, so you should choose "3, 9"
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Last updated: March 27, 2025
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| First submitted | March 27, 2025 |
| Times taken | 67 |
| Average score | 83.0% | Report this quiz | Report |
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1501, 1503, 1507, 1509
1801, 1803, 1807, 1809
1071, 1073, 1077, 1079
1991, 1993, 1997, 1999
1901, 1903, 1907, 1909
1751, 1753, 1757, 1759
1161, 1163, 1167, 1169
1741, 1743, 1747, 1749
1891, 1893, 1897, 1899
1861, 1863, 1867, 1869
1521, 1523, 1527, 1529
1031, 1033, 1037, 1039
1391, 1393, 1397, 1399
1731, 1733, 1737, 1739
1561, 1563, 1567, 1569
1611, 1613, 1617, 1619
1301, 1303, 1307, 1309
1381, 1383, 1387, 1389
1271, 1273, 1277, 1279
1151, 1153, 1157, 1159
1931, 1933, 1937, 1939
1331, 1333, 1337, 1339
1051, 1053, 1057, 1059
1791, 1793, 1797, 1799
1681, 1683, 1687, 1689
1691, 1693, 1697, 1699
1911, 1913, 1917, 1919
1171, 1173, 1177, 1179
1511, 1513, 1517, 1519
1121, 1123, 1127, 1129
1871, 1873, 1877, 1879
1061, 1063, 1067, 1069
1411, 1413, 1417, 1419
1221, 1223, 1227, 1229
1641, 1643, 1647, 1649
1771, 1773, 1777, 1779
1101, 1103, 1107, 1109
1491, 1493, 1497, 1499
1881, 1883, 1887, 1889
1311, 1313, 1317, 1319
1251, 1253, 1257, 1259
1811, 1813, 1817, 1819
1451, 1453, 1457, 1459
1941, 1943, 1947, 1949
1291, 1293, 1297, 1299
1461, 1463, 1467, 1469
1401, 1403, 1407, 1409
1971, 1973, 1977, 1979
1481, 1483, 1487, 1489
1471, 1473, 1477, 1479
1961, 1963, 1967, 1969
1701, 1703, 1707, 1709
1571, 1573, 1577, 1579
1441, 1443, 1447, 1449
1081, 1083, 1087, 1089
1001, 1003, 1007, 1009
1851, 1853, 1857, 1859
1261, 1263, 1267, 1269
1131, 1133, 1137, 1139
1351, 1353, 1357, 1359
1981, 1983, 1987, 1989
1781, 1783, 1787, 1789
1951, 1953, 1957, 1959
1631, 1633, 1637, 1639
1421, 1423, 1427, 1429
1661, 1663, 1667, 1669
1721, 1723, 1727, 1729
1551, 1553, 1557, 1559
1651, 1653, 1657, 1659
1281, 1283, 1287, 1289
1591, 1593, 1597, 1599
1091, 1093, 1097, 1099
1241, 1243, 1247, 1249
1211, 1213, 1217, 1219
1021, 1023, 1027, 1029
1671, 1673, 1677, 1679
1361, 1363, 1367, 1369
1621, 1623, 1627, 1629
1531, 1533, 1537, 1539
1191, 1193, 1197, 1199
1181, 1183, 1187, 1189
1841, 1843, 1847, 1849
1601, 1603, 1607, 1609
1111, 1113, 1117, 1119
1321, 1323, 1327, 1329
1041, 1043, 1047, 1049
1821, 1823, 1827, 1829
1011, 1013, 1017, 1019
1761, 1763, 1767, 1769
1541, 1543, 1547, 1549
1371, 1373, 1377, 1379
1201, 1203, 1207, 1209
1711, 1713, 1717, 1719
1431, 1433, 1437, 1439
1921, 1923, 1927, 1929
1231, 1233, 1237, 1239
1141, 1143, 1147, 1149
1581, 1583, 1587, 1589
1341, 1343, 1347, 1349
1831, 1833, 1837, 1839
0none
11
13
17
19
21, 3
21, 7
21, 9
23, 7
23, 9
27, 9
31, 3, 7
31, 3, 9
31, 7, 9
33, 7, 9
4all
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