Science Quiz / Is It Prime?

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

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Forced OrderWrong Answers
Also try: Prime Numbers
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Score 0/149 Timer 12:00
NumberPrime (P) or Not Prime (N)Possibly Helpful Information
257
41
277
157
47
403
133
461
217
143
149
291
373
101
43
533
527
393
487
317
269
261
361
241
107
179
313
311
541
273
323
543
61
421
13
337
409
203
123
387
287
499
67
51
263
509
357
347
139
467
NumberPrime (P) or Not Prime (N)Possibly Helpful Information
167
443
239
341
431
11
457
111
349
21
501
151
29
83
69
411
17
371
37
2
307
231
493
127
59
419
503
283
5
439
191
511
523
453
173
383
441
433
89
271
131
53
19
7
333
353
469
23
489
389
NumberPrime (P) or Not Prime (N)Possibly Helpful Information
221
199
73
137
253
223
39
181
183
71
491
249
197
103
3
293
367
113
359
301
331
163
171
193
31
79
437
97
227
281
379
251
211
1
229
521
109
91
397
471
159
449
463
319
479
161
423
401
87

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