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

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