谁还能再写几道这样的等式?(少年谜组问)

谁还能再写几道这样的等式?(少年谜组问)括号里填入数字1、2、3、4、6、7、8、9各一次,得数为50.这样的等式成立吗?()()()×()()÷()()()=50如果不... 谁还能再写几道这样的等式?(少年谜组问)

括号里填入数字1、2、3、4、6、7、8、9各一次,得数为50.这样的等式成立吗?

()()()×()()÷()()()=50
如果不成立,请说出理由.
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2022-12-18
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由于所有的4位数减去3位数,结果都为正整数
因此将1~7的全排列代入上纤陪李面的算式即可得到所有的算式
总数量是7!=5040

如:
1234-567=667,1234-576=658,1234-657=577,1234-675=559
1234-756=478,1234-765=469,1235-467=768,1235-476=759
1235-647=588,1235-674=561,1235-746=489,1235-764=471
1236-457=779,1236-475=761,1236-547=689,1236-574=662
1236-745=491,1236-754=482,1237-456=781,1237-465=772
1237-546=691,1237-564=673,1237-645=592,1237-654=583
1243-567=676,1243-576=667,1243-657=586,1243-675=568
1243-756=487,1243-765=478,乱档1245-367=878,1245-376=869
1245-637=608,1245-673=572,1245-736=509,1245-763=482
1246-357=889,1246-375=871,毁迟1246-537=709,1246-573=673
1246-735=511,1246-753=493,1247-356=891,1247-365=882
1247-536=711,1247-563=684,1247-635=612,1247-653=594
1253-467=786,1253-476=777,1253-647=606,1253-674=579
1253-746=507,1253-764=489,1254-367=887,1254-376=878
1254-637=617,1254-673=581,1254-736=518,1254-763=491
1256-347=909,1256-374=882,1256-437=819,1256-473=783
1256-734=522,1256-743=513,1257-346=911,1257-364=893
1257-436=821,1257-463=794,1257-634=623,1257-643=614
1263-457=806,1263-475=788,1263-547=716,1263-574=689
1263-745=518,1263-754=509,1264-357=907,1264-375=889
1264-537=727,1264-573=691,1264-735=529,1264-753=511
1265-347=918,1265-374=891,1265-437=828,1265-473=792
1265-734=531,1265-743=522,1267-345=922,1267-354=913
1267-435=832,1267-453=814,1267-534=733,1267-543=724
1273-456=817,1273-465=808,1273-546=727,1273-564=709
1273-645=628,1273-654=619,1274-356=918,1274-365=909
1274-536=738,1274-563=711,1274-635=639,1274-653=621
1275-346=929,1275-364=911,1275-436=839,1275-463=812
1275-634=641,1275-643=632,1276-345=931,1276-354=922
1276-435=841,1276-453=823,1276-534=742,1276-543=733
1324-567=757,1324-576=748,1324-657=667,1324-675=649
1324-756=568,1324-765=559,1325-467=858,1325-476=849
1325-647=678,1325-674=651,1325-746=579,1325-764=561
1326-457=869,1326-475=851,1326-547=779,1326-574=752
1326-745=581,1326-754=572,1327-456=871,1327-465=862
1327-546=781,1327-564=763,1327-645=682,1327-654=673
1342-567=775,1342-576=766,1342-657=685,1342-675=667
1342-756=586,1342-765=577,1345-267=1078,1345-276=1069
1345-627=718,1345-672=673,1345-726=619,1345-762=583
1346-257=1089,1346-275=1071,1346-527=819,1346-572=774
1346-725=621,1346-752=594,1347-256=1091,1347-265=1082
1347-526=821,1347-562=785,1347-625=722,1347-652=695
1352-467=885,1352-476=876,1352-647=705,1352-674=678
1352-746=606,1352-764=588,1354-267=1087,1354-276=1078
1354-627=727,1354-672=682,1354-726=628,1354-762=592
1356-247=1109,1356-274=1082,1356-427=929,1356-472=884
1356-724=632,1356-742=614,1357-246=1111,1357-264=1093
1357-426=931,1357-462=895,1357-624=733,1357-642=715
1362-457=905,1362-475=887,1362-547=815,1362-574=788
1362-745=617,1362-754=608,1364-257=1107,1364-275=1089
1364-527=837,1364-572=792,1364-725=639,1364-752=612
1365-247=1118,1365-274=1091,1365-427=938,1365-472=893
1365-724=641,1365-742=623,1367-245=1122,1367-254=1113
1367-425=942,1367-452=915,1367-524=843,1367-542=825
1372-456=916,1372-465=907,1372-546=826,1372-564=808
1372-645=727,1372-654=718,1374-256=1118,1374-265=1109
1374-526=848,1374-562=812,1374-625=749,1374-652=722
1375-246=1129,1375-264=1111,1375-426=949,1375-462=913
1375-624=751,1375-642=733,1376-245=1131,1376-254=1122
1376-425=951,1376-452=924,1376-524=852,1376-542=834
1423-567=856,1423-576=847,1423-657=766,1423-675=748
1423-756=667,1423-765=658,1425-367=1058,1425-376=1049
1425-637=788,1425-673=752,1425-736=689,1425-763=662
1426-357=1069,1426-375=1051,1426-537=889,1426-573=853
1426-735=691,1426-753=673,1427-356=1071,1427-365=1062
1427-536=891,1427-563=864,1427-635=792,1427-653=774
1432-567=865,1432-576=856,1432-657=775,1432-675=757
1432-756=676,1432-765=667,1435-267=1168,1435-276=1159
1435-627=808,1435-672=763,1435-726=709,1435-762=673
1436-257=1179,1436-275=1161,1436-527=909,1436-572=864
1436-725=711,1436-752=684,1437-256=1181,1437-265=1172
1437-526=911,1437-562=875,1437-625=812,1437-652=785
1452-367=1085,1452-376=1076,1452-637=815,1452-673=779
1452-736=716,1452-763=689,1453-267=1186,1453-276=1177
1453-627=826,1453-672=781,1453-726=727,1453-762=691
1456-237=1219,1456-273=1183,1456-327=1129,1456-372=1084
1456-723=733,1456-732=724,1457-236=1221,1457-263=1194
1457-326=1131,1457-362=1095,1457-623=834,1457-632=825
1462-357=1105,1462-375=1087,1462-537=925,1462-573=889
1462-735=727,1462-753=709,1463-257=1206,1463-275=1188
1463-527=936,1463-572=891,1463-725=738,1463-752=711
1465-237=1228,1465-273=1192,1465-327=1138,1465-372=1093
1465-723=742,1465-732=733,1467-235=1232,1467-253=1214
1467-325=1142,1467-352=1115,1467-523=944,1467-532=935
1472-356=1116,1472-365=1107,1472-536=936,1472-563=909
1472-635=837,1472-653=819,1473-256=1217,1473-265=1208
1473-526=947,1473-562=911,1473-625=848,1473-652=821
1475-236=1239,1475-263=1212,1475-326=1149,1475-362=1113
1475-623=852,1475-632=843,1476-235=1241,1476-253=1223
1476-325=1151,1476-352=1124,1476-523=953,1476-532=944
1523-467=1056,1523-476=1047,1523-647=876,1523-674=849
1523-746=777,1523-764=759,1524-367=1157,1524-376=1148
1524-637=887,1524-673=851,1524-736=788,1524-763=761
1526-347=1179,1526-374=1152,1526-437=1089,1526-473=1053
1526-734=792,1526-743=783,1527-346=1181,1527-364=1163
1527-436=1091,1527-463=1064,1527-634=893,1527-643=884
1532-467=1065,1532-476=1056,1532-647=885,1532-674=858
1532-746=786,1532-764=768,1534-267=1267,1534-276=1258
1534-627=907,1534-672=862,1534-726=808,1534-762=772
1536-247=1289,1536-274=1262,1536-427=1109,1536-472=1064
1536-724=812,1536-742=794,1537-246=1291,1537-264=1273
1537-426=1111,1537-462=1075,1537-624=913,1537-642=895
1542-367=1175,1542-376=1166,1542-637=905,1542-673=869
1542-736=806,1542-763=779,1543-267=1276,1543-276=1267
1543-627=916,1543-672=871,1543-726=817,1543-762=781
1546-237=1309,1546-273=1273,1546-327=1219,1546-372=1174
1546-723=823,1546-732=814,1547-236=1311,1547-263=1284
1547-326=1221,1547-362=1185,1547-623=924,1547-632=915
1562-347=1215,1562-374=1188,1562-437=1125,1562-473=1089
1562-734=828,1562-743=819,1563-247=1316,1563-274=1289
1563-427=1136,1563-472=1091,1563-724=839,1563-742=821
1564-237=1327,1564-273=1291,1564-327=1237,1564-372=1192
1564-723=841,1564-732=832,1567-234=1333,1567-243=1324
1567-324=1243,1567-342=1225,1567-423=1144,1567-432=1135
1572-346=1226,1572-364=1208,1572-436=1136,1572-463=1109
1572-634=938,1572-643=929,1573-246=1327,1573-264=1309
1573-426=1147,1573-462=1111,1573-624=949,1573-642=931
1574-236=1338,1574-263=1311,1574-326=1248,1574-362=1212
1574-623=951,1574-632=942,1576-234=1342,1576-243=1333
1576-324=1252,1576-342=1234,1576-423=1153,1576-432=1144
1623-457=1166,1623-475=1148,1623-547=1076,1623-574=1049
1623-745=878,1623-754=869,1624-357=1267,1624-375=1249
1624-537=1087,1624-573=1051,1624-735=889,1624-753=871
1625-347=1278,1625-374=1251,1625-437=1188,1625-473=1152
1625-734=891,1625-743=882,1627-345=1282,1627-354=1273
1627-435=1192,1627-453=1174,1627-534=1093,1627-543=1084
1632-457=1175,1632-475=1157,1632-547=1085,1632-574=1058
1632-745=887,1632-754=878,1634-257=1377,1634-275=1359
1634-527=1107,1634-572=1062,1634-725=909,1634-752=882
1635-247=1388,1635-274=1361,1635-427=1208,1635-472=1163
1635-724=911,1635-742=893,1637-245=1392,1637-254=1383
1637-425=1212,1637-452=1185,1637-524=1113,1637-542=1095
1642-357=1285,1642-375=1267,1642-537=1105,1642-573=1069
1642-735=907,1642-753=889,1643-257=1386,1643-275=1368
1643-527=1116,1643-572=1071,1643-725=918,1643-752=891
1645-237=1408,1645-273=1372,1645-327=1318,1645-372=1273
1645-723=922,1645-732=913,1647-235=1412,1647-253=1394
1647-325=1322,1647-352=1295,1647-523=1124,1647-532=1115
1652-347=1305,1652-374=1278,1652-437=1215,1652-473=1179
1652-734=918,1652-743=909,1653-247=1406,1653-274=1379
1653-427=1226,1653-472=1181,1653-724=929,1653-742=911
1654-237=1417,1654-273=1381,1654-327=1327,1654-372=1282
1654-723=931,1654-732=922,1657-234=1423,1657-243=1414
1657-324=1333,1657-342=1315,1657-423=1234,1657-432=1225
1672-345=1327,1672-354=1318,1672-435=1237,1672-453=1219
1672-534=1138,1672-543=1129,1673-245=1428,1673-254=1419
1673-425=1248,1673-452=1221,1673-524=1149,1673-542=1131
1674-235=1439,1674-253=1421,1674-325=1349,1674-352=1322
1674-523=1151,1674-532=1142,1675-234=1441,1675-243=1432
1675-324=1351,1675-342=1333,1675-423=1252,1675-432=1243
1723-456=1267,1723-465=1258,1723-546=1177,1723-564=1159
1723-645=1078,1723-654=1069,1724-356=1368,1724-365=1359
1724-536=1188,1724-563=1161,1724-635=1089,1724-653=1071
1725-346=1379,1725-364=1361,1725-436=1289,1725-463=1262
1725-634=1091,1725-643=1082,1726-345=1381,1726-354=1372
1726-435=1291,1726-453=1273,1726-534=1192,1726-543=1183
1732-456=1276,1732-465=1267,1732-546=1186,1732-564=1168
1732-645=1087,1732-654=1078,1734-256=1478,1734-265=1469
1734-526=1208,1734-562=1172,1734-625=1109,1734-652=1082
1735-246=1489,1735-264=1471,1735-426=1309,1735-462=1273
1735-624=1111,1735-642=1093,1736-245=1491,1736-254=1482
1736-425=1311,1736-452=1284,1736-524=1212,1736-542=1194
1742-356=1386,1742-365=1377,1742-536=1206,1742-563=1179
1742-635=1107,1742-653=1089,1743-256=1487,1743-265=1478
1743-526=1217,1743-562=1181,1743-625=1118,1743-652=1091
1745-236=1509,1745-263=1482,1745-326=1419,1745-362=1383
1745-623=1122,1745-632=1113,1746-235=1511,1746-253=1493
1746-325=1421,1746-352=1394,1746-523=1223,1746-532=1214
1752-346=1406,1752-364=1388,1752-436=1316,1752-463=1289
1752-634=1118,1752-643=1109,1753-246=1507,1753-264=1489
1753-426=1327,1753-462=1291,1753-624=1129,1753-642=1111
1754-236=1518,1754-263=1491,1754-326=1428,1754-362=1392
1754-623=1131,1754-632=1122,1756-234=1522,1756-243=1513
1756-324=1432,1756-342=1414,1756-423=1333,1756-432=1324
1762-345=1417,1762-354=1408,1762-435=1327,1762-453=1309
1762-534=1228,1762-543=1219,1763-245=1518,1763-254=1509
1763-425=1338,1763-452=1311,1763-524=1239,1763-542=1221
1764-235=1529,1764-253=1511,1764-325=1439,1764-352=1412
1764-523=1241,1764-532=1232,1765-234=1531,1765-243=1522
1765-324=1441,1765-342=1423,1765-423=1342,1765-432=1333
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不能成立。
设三个数分别为x、y、z(皆为整数)。即x*y/z=50
则搭饥x*y=50z
则x*y的值为50的整数倍,x*y的值的个位上必然为0
然而从给知坦返出的数当中,信携找不出任何可以相乘得零的数
所以这样的等式不能成立
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