Can you name the prime numbers (p) and composite numbers (n)?

created by chair
  • Enter a prime or not in the box below
  • Correctly named prime numbers will show up below
  • Click any empty Number or 'P'rime or 'N'ot? to answer for that location
  • Some wrong answers will appear in red
  • Source: List of Prime Numbers
  • This quiz has not been verified by Sporcle
03:00
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Number'P'rime or 'N'ot?
7
1001
42
83
123
5
641
27
107
1337
31
1000
1999
1967
751
2
103
69
187
2011
Number'P'rime or 'N'ot?
947
97
1103
3
51
23
207
41
137
199
79
53
55
114
171
1551
639
101
4
29
Number'P'rime or 'N'ot?
99
15
117
1747
999
222
153
141
105
111
225
37
253
149
47
19
67
59
63
321
Number'P'rime or 'N'ot?
11
267
13
61
43
2001
87
73
17
89
263
703
989
71
49
21
151
2013
77
201
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Prime Number or Not? Quiz

  1. by chair
  • Created Dec 14, 2011 in Science
  • Game Plays 18

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