Is It Prime?

Random Science or math Quiz

Can you name the first 100 primes and some non-primes?

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NumberPrime (P) or Not Prime (N)Possibly Helpful Information
389
283
7
501
203
403
311
423
401
379
479
359
173
23
109
393
387
79
273
163
87
257
493
59
5
277
541
287
431
83
47
239
211
367
231
467
111
19
433
499
229
11
491
161
503
439
469
263
511
171
NumberPrime (P) or Not Prime (N)Possibly Helpful Information
131
421
509
191
269
357
527
419
69
409
157
193
253
337
29
487
543
179
143
127
137
411
249
471
61
441
453
183
443
197
533
347
313
341
223
149
437
167
217
353
21
261
323
291
2
251
489
457
1
51
NumberPrime (P) or Not Prime (N)Possibly Helpful Information
151
331
43
107
281
383
89
397
39
449
461
463
113
181
371
301
103
159
13
133
101
199
139
361
319
53
241
521
349
317
3
37
31
271
17
221
91
307
333
73
373
293
523
67
71
97
41
227
123

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