4. 3475 - 3, 3, 34, 4, 347, 7, 3475, 5
4703 este numarul
9832 - 9, 9, 98, 8, 983, 3, 9832, 2
6. 2765
5947
9089
10000
7. 3457, 3458, 3459, 3460, 3461, 3462, 3463, 3464, 3465, 3456, 3467, 3468
1242, 1241, 1240, 1239, 1238, 1237, 1236, 1235
2353, 2354, 2355, 2356, 2357, 2358, 2359, 2360, 2361, 2362, 2363
b) numerele pare sunt cele care au ultima cifra 0,2,4,6,8
