A121042 - cp's OEIS frontend

A121042 Smallest divisor of n that is also contained in the decimal representation of n.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	2
21	1
22	2
23	23
24	2
25	5
26	2
27	27
28	2
29	29
30	3
31	1
32	2
33	3
34	34
35	5
36	3
37	37
38	38
39	3
40	4
41	1
42	2
43	43
44	4
45	5
46	46
47	47
48	4
49	49
50	5
51	1
52	2
53	53
54	54
55	5
56	56
57	57
58	58
59	59
60	6
61	1
62	2
63	3
64	4
65	5
66	6
67	67
68	68
69	69
70	7
71	1
72	2
73	73
74	74
75	5
76	76
77	7
78	78
79	79
80	8
81	1
82	2
83	83
84	4
85	5
86	86
87	87
88	8
89	89
90	9
91	1

[1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 23, 2, 5, 2, 27, 2, 29, 3, 1, 2, 3, 34, 5, 3, 37, 38, 3, 4, 1, 2, 43, 4, 5, 46, 47, 4, 49, 5, 1, 2, 53, 54, 5, 56, 57, 58, 59, 6, 1, 2, 3, 4, 5, 6, 67, 68, 69, 7, 1, 2, 73, 74, 5, 76, 7, 78, 79, 8, 1, 2, 83, 4, 5, 86, 87, 8, 89, 9, 1]

cp's OEIS Frontend

A121042 Smallest divisor of n that is also contained in the decimal representation of n.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	2
21	1
22	2
23	23
24	2
25	5
26	2
27	27
28	2
29	29
30	3
31	1
32	2
33	3
34	34
35	5
36	3
37	37
38	38
39	3
40	4
41	1
42	2
43	43
44	4
45	5
46	46
47	47
48	4
49	49
50	5
51	1
52	2
53	53
54	54
55	5
56	56
57	57
58	58
59	59
60	6
61	1
62	2
63	3
64	4
65	5
66	6
67	67
68	68
69	69
70	7
71	1
72	2
73	73
74	74
75	5
76	76
77	7
78	78
79	79
80	8
81	1
82	2
83	83
84	4
85	5
86	86
87	87
88	8
89	89
90	9
91	1

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	2
21	1
22	2
23	23
24	2
25	5
26	2
27	27
28	2
29	29
30	3
31	1
32	2
33	3
34	34
35	5
36	3
37	37
38	38
39	3
40	4
41	1
42	2
43	43
44	4
45	5
46	46
47	47
48	4
49	49
50	5
51	1
52	2
53	53
54	54
55	5
56	56
57	57
58	58
59	59
60	6
61	1
62	2
63	3
64	4
65	5
66	6
67	67
68	68
69	69
70	7
71	1
72	2
73	73
74	74
75	5
76	76
77	7
78	78
79	79
80	8
81	1
82	2
83	83
84	4
85	5
86	86
87	87
88	8
89	89
90	9
91	1

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9
10	1
11	1
12	1
13	1
14	1
15	1
16	1
17	1
18	1
19	1
20	2
21	1
22	2
23	23
24	2
25	5
26	2
27	27
28	2
29	29
30	3
31	1
32	2
33	3
34	34
35	5
36	3
37	37
38	38
39	3
40	4
41	1
42	2
43	43
44	4
45	5
46	46
47	47
48	4
49	49
50	5
51	1
52	2
53	53
54	54
55	5
56	56
57	57
58	58
59	59
60	6
61	1
62	2
63	3
64	4
65	5
66	6
67	67
68	68
69	69
70	7
71	1
72	2
73	73
74	74
75	5
76	76
77	7
78	78
79	79
80	8
81	1
82	2
83	83
84	4
85	5
86	86
87	87
88	8
89	89
90	9
91	1