Prime Number or Not?

Random Science or Numbers Quiz

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

Updated Feb 16, 2015

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

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