Divisibles
Enter a number equal or greater than 1 and 1 to N blocks will appear in a random order. Hover over a block to see which numbers are its divisors or whether that number is prime.
28
28
36
36
1
1
89
89
80
80
29
29
8
8
59
59
83
83
81
81
22
22
9
9
24
24
62
62
67
67
68
68
97
97
27
27
57
57
37
37
6
6
74
74
73
73
38
38
45
45
54
54
53
53
55
55
78
78
35
35
75
75
25
25
32
32
96
96
3
3
2
2
16
16
64
64
86
86
82
82
11
11
94
94
33
33
15
15
88
88
52
52
44
44
26
26
39
39
65
65
58
58
56
56
42
42
93
93
18
18
90
90
51
51
100
100
72
72
41
41
66
66
12
12
43
43
19
19
77
77
30
30
10
10
20
20
23
23
99
99
47
47
48
48
31
31
50
50
61
61
13
13
71
71
14
14
95
95
49
49
84
84
69
69
40
40
98
98
60
60
4
4
7
7
34
34
17
17
92
92
5
5
46
46
87
87
91
91
79
79
63
63
85
85
70
70
21
21
76
76