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

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