A061564 - cp's OEIS frontend

A061564 Numbers k such that the repeating part of the decimal expansion of 1/k (omitting leading or trailing zeros) forms a prime number.

n	a(n)
1	3
2	12
3	18
4	27
5	30
6	33
7	36
8	45
9	48
10	75
11	120
12	180
13	192
14	198
15	270
16	288
17	300
18	330
19	333
20	360
21	369
22	450
23	480
24	495
25	750
26	768
27	909
28	1152
29	1200
30	1584
31	1800
32	1875
33	1920
34	1980
35	1998
36	2151
37	2304
38	2439
39	2700
40	2880
41	2997
42	3000
43	3072
44	3300
45	3330
46	3333
47	3600
48	3690
49	4500
50	4800

[3, 12, 18, 27, 30, 33, 36, 45, 48, 75, 120, 180, 192, 198, 270, 288, 300, 330, 333, 360, 369, 450, 480, 495, 750, 768, 909, 1152, 1200, 1584, 1800, 1875, 1920, 1980, 1998, 2151, 2304, 2439, 2700, 2880, 2997, 3000, 3072, 3300, 3330, 3333, 3600, 3690, 4500, 4800]

cp's OEIS Frontend

A061564 Numbers k such that the repeating part of the decimal expansion of 1/k (omitting leading or trailing zeros) forms a prime number.

Table of values

List of values