1
00:00:00,500 --> 00:00:09,060
Hãy xem liệu ta có thể đơn giản 
căn bậc 5 của 117?

2
00:00:09,060 --> 00:00:13,060
117 không phải là số chính phương.

3
00:00:13,060 --> 00:00:14,990
Vậy ta sẽ phân tích ra thừa số nguyên tố

4
00:00:14,990 --> 00:00:20,130
và xem có số nguyên tố nào 
xuất hiện nhiều lần không.

5
00:00:20,130 --> 00:00:21,750
Rõ ràng nó là một số lẻ.

6
00:00:21,750 --> 00:00:24,140


7
00:00:24,140 --> 00:00:25,727


8
00:00:25,727 --> 00:00:27,060


9
00:00:27,060 --> 00:00:29,810


10
00:00:29,810 --> 00:00:31,860


11
00:00:31,860 --> 00:00:36,225


12
00:00:36,225 --> 00:00:37,600


13
00:00:37,600 --> 00:00:41,340


14
00:00:41,340 --> 00:00:43,700


15
00:00:43,700 --> 00:00:46,010


16
00:00:46,010 --> 00:00:47,670


17
00:00:47,670 --> 00:00:50,390


18
00:00:50,390 --> 00:00:53,400


19
00:00:53,400 --> 00:00:55,850


20
00:00:55,850 --> 00:00:58,087


21
00:00:58,087 --> 00:00:59,170


22
00:00:59,170 --> 00:01:02,080


23
00:01:02,080 --> 00:01:07,550


24
00:01:07,550 --> 00:01:10,935


25
00:01:10,935 --> 00:01:13,010


26
00:01:13,010 --> 00:01:15,820


27
00:01:15,820 --> 00:01:18,320


28
00:01:18,320 --> 00:01:23,580


29
00:01:23,580 --> 00:01:34,585


30
00:01:37,061 --> 00:01:39,560


31
00:01:39,560 --> 00:01:43,210


32
00:01:43,210 --> 00:01:54,880


33
00:01:54,880 --> 00:01:56,744


34
00:01:56,744 --> 00:01:58,160


35
00:01:58,160 --> 00:01:59,730


36
00:01:59,730 --> 00:02:02,120


37
00:02:02,120 --> 00:02:04,590


38
00:02:04,590 --> 00:02:10,470


39
00:02:10,470 --> 00:02:14,750


40
00:02:14,750 --> 00:02:19,850


41
00:02:19,850 --> 00:02:21,750


42
00:02:21,750 --> 00:02:29,896


43
00:02:29,896 --> 00:02:31,770


44
00:02:31,770 --> 00:02:35,160


45
00:02:35,160 --> 00:02:37,442


46
00:02:37,442 --> 00:02:38,900


47
00:02:38,900 --> 00:02:41,917


48
00:02:41,917 --> 00:02:42,750


49
00:02:42,750 --> 00:02:43,820


50
00:02:43,820 --> 00:02:45,860


51
00:02:45,860 --> 00:02:48,204


52
00:02:48,204 --> 00:02:49,620


53
00:02:49,620 --> 00:02:50,970


54
00:02:50,970 --> 00:02:52,720


55
00:02:52,720 --> 00:02:55,430


56
00:02:55,430 --> 00:02:58,740


57
00:02:58,740 --> 00:03:01,645


58
00:03:01,645 --> 00:03:08,138