Integers 1–500 in radix 9. Colored by multiplicative persistence (max 5 in this range).
Smallest number with persistence k:
k |
0 |
1 |
2 |
3 |
4 |
5 |
smallest |
1 |
10 |
25 |
38 |
57 |
477 |
count |
8 |
159 |
159 |
135 |
36 |
3 |
0 |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
|
| 0 | 1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
20
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
| 25 | 28
|
30
|
31
|
32
|
33
|
34
|
35
|
36
|
37
|
38
|
40
|
41
|
42
|
43
|
44
|
45
|
46
|
47
|
48
|
50
|
51
|
52
|
53
|
54
|
55
|
| 50 | 56
|
57
|
58
|
60
|
61
|
62
|
63
|
64
|
65
|
66
|
67
|
68
|
70
|
71
|
72
|
73
|
74
|
75
|
76
|
77
|
78
|
80
|
81
|
82
|
83
|
| 75 | 84
|
85
|
86
|
87
|
88
|
100
|
101
|
102
|
103
|
104
|
105
|
106
|
107
|
108
|
110
|
111
|
112
|
113
|
114
|
115
|
116
|
117
|
118
|
120
|
121
|
| 100 | 122
|
123
|
124
|
125
|
126
|
127
|
128
|
130
|
131
|
132
|
133
|
134
|
135
|
136
|
137
|
138
|
140
|
141
|
142
|
143
|
144
|
145
|
146
|
147
|
148
|
| 125 | 150
|
151
|
152
|
153
|
154
|
155
|
156
|
157
|
158
|
160
|
161
|
162
|
163
|
164
|
165
|
166
|
167
|
168
|
170
|
171
|
172
|
173
|
174
|
175
|
176
|
| 150 | 177
|
178
|
180
|
181
|
182
|
183
|
184
|
185
|
186
|
187
|
188
|
200
|
201
|
202
|
203
|
204
|
205
|
206
|
207
|
208
|
210
|
211
|
212
|
213
|
214
|
| 175 | 215
|
216
|
217
|
218
|
220
|
221
|
222
|
223
|
224
|
225
|
226
|
227
|
228
|
230
|
231
|
232
|
233
|
234
|
235
|
236
|
237
|
238
|
240
|
241
|
242
|
| 200 | 243
|
244
|
245
|
246
|
247
|
248
|
250
|
251
|
252
|
253
|
254
|
255
|
256
|
257
|
258
|
260
|
261
|
262
|
263
|
264
|
265
|
266
|
267
|
268
|
270
|
| 225 | 271
|
272
|
273
|
274
|
275
|
276
|
277
|
278
|
280
|
281
|
282
|
283
|
284
|
285
|
286
|
287
|
288
|
300
|
301
|
302
|
303
|
304
|
305
|
306
|
307
|
| 250 | 308
|
310
|
311
|
312
|
313
|
314
|
315
|
316
|
317
|
318
|
320
|
321
|
322
|
323
|
324
|
325
|
326
|
327
|
328
|
330
|
331
|
332
|
333
|
334
|
335
|
| 275 | 336
|
337
|
338
|
340
|
341
|
342
|
343
|
344
|
345
|
346
|
347
|
348
|
350
|
351
|
352
|
353
|
354
|
355
|
356
|
357
|
358
|
360
|
361
|
362
|
363
|
| 300 | 364
|
365
|
366
|
367
|
368
|
370
|
371
|
372
|
373
|
374
|
375
|
376
|
377
|
378
|
380
|
381
|
382
|
383
|
384
|
385
|
386
|
387
|
388
|
400
|
401
|
| 325 | 402
|
403
|
404
|
405
|
406
|
407
|
408
|
410
|
411
|
412
|
413
|
414
|
415
|
416
|
417
|
418
|
420
|
421
|
422
|
423
|
424
|
425
|
426
|
427
|
428
|
| 350 | 430
|
431
|
432
|
433
|
434
|
435
|
436
|
437
|
438
|
440
|
441
|
442
|
443
|
444
|
445
|
446
|
447
|
448
|
450
|
451
|
452
|
453
|
454
|
455
|
456
|
| 375 | 457
|
458
|
460
|
461
|
462
|
463
|
464
|
465
|
466
|
467
|
468
|
470
|
471
|
472
|
473
|
474
|
475
|
476
|
477
|
478
|
480
|
481
|
482
|
483
|
484
|
| 400 | 485
|
486
|
487
|
488
|
500
|
501
|
502
|
503
|
504
|
505
|
506
|
507
|
508
|
510
|
511
|
512
|
513
|
514
|
515
|
516
|
517
|
518
|
520
|
521
|
522
|
| 425 | 523
|
524
|
525
|
526
|
527
|
528
|
530
|
531
|
532
|
533
|
534
|
535
|
536
|
537
|
538
|
540
|
541
|
542
|
543
|
544
|
545
|
546
|
547
|
548
|
550
|
| 450 | 551
|
552
|
553
|
554
|
555
|
556
|
557
|
558
|
560
|
561
|
562
|
563
|
564
|
565
|
566
|
567
|
568
|
570
|
571
|
572
|
573
|
574
|
575
|
576
|
577
|
| 475 | 578
|
580
|
581
|
582
|
583
|
584
|
585
|
586
|
587
|
588
|
600
|
601
|
602
|
603
|
604
|
605
|
606
|
607
|
608
|
610
|
611
|
612
|
613
|
614
|
615
|