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

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