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http://www.referat.ru/pub/item/28291
1, 2, 4, 6, 10, 12, 18, 20, 30, 36, 60. . 1, 2, 3, 4, 5, 6.¥.
. , - , , d = 7, .
. (), . - .
4, (30 I - 17) (30 j - 23).
7- (10 I - 3) (10 j - 7).
8, - (2 I + 1) (2 j + 1).
9, - ( I + 1) ( j + 1).
, + , . , , .. .
3 .
 
 













- , .
2- d=6.
| 55 |
77 |
511 |
517 |
713 |
| 1 |
7 |
13 |
19 |
25 |
31 |
37 |
43 |
49 |
55 |
61 |
67 |
73 |
79 |
85 |
91 |
97 |
| 57 |
513 |
711 |
519 |
| 5 |
11 |
17 |
23 |
29 |
35 |
41 |
47 |
53 |
59 |
65 |
71 |
77 |
83 |
89 |
95 |
101 |
1 (6 I - 1) (6 j - 1), (6 k + 1) (6 e +1).
2 (6 I + 1) (6 j - 1).
.
c d = 30 91 (30 - 17) (30 - 23), = 1, = 1.
c d = 10 (10 - 3) (10 - 7), = 2, = 1.
c d = 6 (6 + 1) (6 + 1), = 1, = 2.
c d = 4 (4 - 1) (4 + 1), = 2, = 3.
c d = 2 (2 + 1) (2 + 1), = 3, = 6.
c d = 1 ( + 1) ( +1), = 6, = 12.
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