Prime Number or Not?

Random Science or math Quiz

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

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

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