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

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