Prime Number or Not?

Random Science or Numbers Quiz

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

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Score 0/80 Timer 03:00
Number'P'rime or 'N'ot?
1967
21
151
111
1337
31
222
15
751
2
27
87
201
117
2013
53
61
2011
1747
99
Number'P'rime or 'N'ot?
17
639
999
63
51
89
19
641
263
49
207
42
123
5
199
1001
1551
73
3
47
Number'P'rime or 'N'ot?
149
947
703
67
11
69
2001
267
77
83
253
107
101
7
141
59
23
187
153
989
Number'P'rime or 'N'ot?
225
13
114
137
4
97
43
171
1000
41
29
79
55
71
105
1999
1103
37
103
321

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