# Three-digit

How many three-digit natural numbers is greater than 321 if no digit in number repeated?

Result

n =  486

#### Solution:

1. 324
2. 325
3. 326
4. 327
5. 328
6. 329
7. 340
8. 341
9. 342
10. 345
11. 346
12. 347
13. 348
14. 349
15. 350
16. 351
17. 352
18. 354
19. 356
20. 357
21. 358
22. 359
23. 360
24. 361
25. 362
26. 364
27. 365
28. 367
29. 368
30. 369
31. 370
32. 371
33. 372
34. 374
35. 375
36. 376
37. 378
38. 379
39. 380
40. 381
41. 382
42. 384
43. 385
44. 386
45. 387
46. 389
47. 390
48. 391
49. 392
50. 394
51. 395
52. 396
53. 397
54. 398
55. 401
56. 402
57. 403
58. 405
59. 406
60. 407
61. 408
62. 409
63. 410
64. 412
65. 413
66. 415
67. 416
68. 417
69. 418
70. 419
71. 420
72. 421
73. 423
74. 425
75. 426
76. 427
77. 428
78. 429
79. 430
80. 431
81. 432
82. 435
83. 436
84. 437
85. 438
86. 439
87. 450
88. 451
89. 452
90. 453
91. 456
92. 457
93. 458
94. 459
95. 460
96. 461
97. 462
98. 463
99. 465
100. 467
101. 468
102. 469
103. 470
104. 471
105. 472
106. 473
107. 475
108. 476
109. 478
110. 479
111. 480
112. 481
113. 482
114. 483
115. 485
116. 486
117. 487
118. 489
119. 490
120. 491
121. 492
122. 493
123. 495
124. 496
125. 497
126. 498
127. 501
128. 502
129. 503
130. 504
131. 506
132. 507
133. 508
134. 509
135. 510
136. 512
137. 513
138. 514
139. 516
140. 517
141. 518
142. 519
143. 520
144. 521
145. 523
146. 524
147. 526
148. 527
149. 528
150. 529
151. 530
152. 531
153. 532
154. 534
155. 536
156. 537
157. 538
158. 539
159. 540
160. 541
161. 542
162. 543
163. 546
164. 547
165. 548
166. 549
167. 560
168. 561
169. 562
170. 563
171. 564
172. 567
173. 568
174. 569
175. 570
176. 571
177. 572
178. 573
179. 574
180. 576
181. 578
182. 579
183. 580
184. 581
185. 582
186. 583
187. 584
188. 586
189. 587
190. 589
191. 590
192. 591
193. 592
194. 593
195. 594
196. 596
197. 597
198. 598
199. 601
200. 602
201. 603
202. 604
203. 605
204. 607
205. 608
206. 609
207. 610
208. 612
209. 613
210. 614
211. 615
212. 617
213. 618
214. 619
215. 620
216. 621
217. 623
218. 624
219. 625
220. 627
221. 628
222. 629
223. 630
224. 631
225. 632
226. 634
227. 635
228. 637
229. 638
230. 639
231. 640
232. 641
233. 642
234. 643
235. 645
236. 647
237. 648
238. 649
239. 650
240. 651
241. 652
242. 653
243. 654
244. 657
245. 658
246. 659
247. 670
248. 671
249. 672
250. 673
251. 674
252. 675
253. 678
254. 679
255. 680
256. 681
257. 682
258. 683
259. 684
260. 685
261. 687
262. 689
263. 690
264. 691
265. 692
266. 693
267. 694
268. 695
269. 697
270. 698
271. 701
272. 702
273. 703
274. 704
275. 705
276. 706
277. 708
278. 709
279. 710
280. 712
281. 713
282. 714
283. 715
284. 716
285. 718
286. 719
287. 720
288. 721
289. 723
290. 724
291. 725
292. 726
293. 728
294. 729
295. 730
296. 731
297. 732
298. 734
299. 735
300. 736
301. 738
302. 739
303. 740
304. 741
305. 742
306. 743
307. 745
308. 746
309. 748
310. 749
311. 750
312. 751
313. 752
314. 753
315. 754
316. 756
317. 758
318. 759
319. 760
320. 761
321. 762
322. 763
323. 764
324. 765
325. 768
326. 769
327. 780
328. 781
329. 782
330. 783
331. 784
332. 785
333. 786
334. 789
335. 790
336. 791
337. 792
338. 793
339. 794
340. 795
341. 796
342. 798
343. 801
344. 802
345. 803
346. 804
347. 805
348. 806
349. 807
350. 809
351. 810
352. 812
353. 813
354. 814
355. 815
356. 816
357. 817
358. 819
359. 820
360. 821
361. 823
362. 824
363. 825
364. 826
365. 827
366. 829
367. 830
368. 831
369. 832
370. 834
371. 835
372. 836
373. 837
374. 839
375. 840
376. 841
377. 842
378. 843
379. 845
380. 846
381. 847
382. 849
383. 850
384. 851
385. 852
386. 853
387. 854
388. 856
389. 857
390. 859
391. 860
392. 861
393. 862
394. 863
395. 864
396. 865
397. 867
398. 869
399. 870
400. 871
401. 872
402. 873
403. 874
404. 875
405. 876
406. 879
407. 890
408. 891
409. 892
410. 893
411. 894
412. 895
413. 896
414. 897
415. 901
416. 902
417. 903
418. 904
419. 905
420. 906
421. 907
422. 908
423. 910
424. 912
425. 913
426. 914
427. 915
428. 916
429. 917
430. 918
431. 920
432. 921
433. 923
434. 924
435. 925
436. 926
437. 927
438. 928
439. 930
440. 931
441. 932
442. 934
443. 935
444. 936
445. 937
446. 938
447. 940
448. 941
449. 942
450. 943
451. 945
452. 946
453. 947
454. 948
455. 950
456. 951
457. 952
458. 953
459. 954
460. 956
461. 957
462. 958
463. 960
464. 961
465. 962
466. 963
467. 964
468. 965
469. 967
470. 968
471. 970
472. 971
473. 972
474. 973
475. 974
476. 975
477. 976
478. 978
479. 980
480. 981
481. 982
482. 983
483. 984
484. 985
485. 986
486. 987 Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

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