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

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