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

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