Is It Prime?

Random Science or Numbers Quiz

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

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

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