Prime Number or Not?

Random Science or This or That Quiz

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

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Number'P'rime or 'N'ot?
13
97
43
187
3
207
101
87
253
137
67
171
59
41
4
7
1999
321
29
53
Number'P'rime or 'N'ot?
751
1001
1551
23
111
947
79
89
11
2
17
1967
99
201
105
103
222
51
151
73
Number'P'rime or 'N'ot?
703
15
1747
37
1337
153
267
107
83
149
61
5
63
21
114
47
2011
989
1103
2013
Number'P'rime or 'N'ot?
2001
1000
117
199
999
42
141
19
123
77
69
639
641
49
27
225
55
31
71
263

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Created Dec 14, 2011Editor's PickSourceReportNominate
Tags:math, Numbers, This or That, Guessing Game, Prime Numbers