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

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