原根表

m	模m的原根(有*号的数没有原根，此时是有最大模m周期的数)	周期
1	0	1
2	1	1
3	2	2
4	3	2
5	2, 3	4
6	5	2
7	3, 5	6
8*	3, 5, 7	2
9	2, 5	6
10	3, 7	4
11	2, 6, 7, 8	10
12*	5, 7, 11	2
13	2, 6, 7, 11	12
14	3, 5	6
15*	2, 7, 8, 13	4
16*	3, 5, 11, 13	4
17	3, 5, 6, 7, 10, 11, 12, 14	16
18	5, 11	6
19	2, 3, 10, 13, 14, 15	18
20*	3, 7, 13, 17	4
21*	2, 5, 10, 11, 17, 19	6
22	7, 13, 17, 19	10
23	5, 7, 10, 11, 14, 15, 17, 19, 20, 21	22
24*	5, 7, 11, 13, 17, 19, 23	2
25	2, 3, 8, 12, 13, 17, 22, 23	20
26	7, 11, 15, 19	12
27	2, 5, 11, 14, 20, 23	18
28*	3, 5, 11, 17, 19, 23	6
29	2, 3, 8, 10, 11, 14, 15, 18, 19, 21, 26, 27	28
30*	7, 13, 17, 23	4
31	3, 11, 12, 13, 17, 21, 22, 24	30
32*	3, 5, 11, 13, 19, 21, 27, 29	8
33*	2, 5, 7, 8, 13, 14, 17, 19, 20, 26, 28, 29	10
34	3, 5, 7, 11, 23, 27, 29, 31	16
35*	2, 3, 12, 17, 18, 23, 32, 33	12
36*	5, 7, 11, 23, 29, 31	6