Interactive Sieve of Eratosthenes Visualization

Select number and change layout:
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

Click 'Show Primes' to highlight prime numbers in yellow

Colored buttons represent prime numbers up to √100

Click on a colored button to select it and change the grid layout

Click "Draw Line" to mark multiples of the selected number (not available for 10-column layout)

Click on any cell to see its prime factorization, click on the factorization box to hide it