idnr: 3908
9+
16+
1260*
4/
1-
9+
14+
6-
8
112*
21*
11+
6
1080*
17+
15+
4-
48*
648*
126*
18+
21*
2/
4/
9+
15+
14+
567*
50*
12+
Difficulty: Medium ()
idnr: 2507
12*
7
11+
13+
18*
18*
810*
6+
16+
24*
10+
28+
10+
40*
19+
20+
14+
22+
20+
9+
14+
16+
17+
7+
147*
5
14+
17+
15+
Difficulty: Very Difficult ()
idnr: 342
180*
48*
3/
18*
336*
756*
35*
1728*
24*
896*
60*
90*
180*
9*
18*
35*
10*
504*
336*
32*
21*
240*
12*
36*
54*
2/
90*
7/
Difficulty: Medium ()
idnr: 1596
14+
32*
3
168*
20*
8+
378*
21+
4/
17+
13+
17640*
10+
3/
17+
29+
15+
16+
12+
240*
216*
12*
9/
11+
504*
42*
2/
6+
Difficulty: Medium ()