A086134 - cp's OEIS frontend

A086134 Smallest prime factor of arithmetic derivative of n or a(n)=0 if no such prime exists.

n	a(n)
0	0
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	2
9	2
10	7
11	0
12	2
13	0
14	3
15	2
16	2
17	0
18	3
19	0
20	2
21	2
22	13
23	0
24	2
25	2
26	3
27	3
28	2
29	0
30	31
31	0
32	2
33	2
34	19
35	2
36	2
37	0
38	3
39	2
40	2
41	0
42	41
43	0
44	2
45	3
46	5
47	0
48	2
49	2
50	3
51	2
52	2
53	0
54	3
55	2
56	2
57	2
58	31
59	0
60	2
61	0
62	3
63	3
64	2
65	2
66	61
67	0
68	2
69	2
70	59
71	0
72	2
73	0
74	3
75	5
76	2
77	2
78	71
79	0
80	2
81	2
82	43
83	0
84	2
85	2
86	3
87	2
88	2
89	0
90	3
91	2
92	2
93	2
94	7
95	2
96	2
97	0
98	7
99	3
100	2
101	0
102	7

[0, 0, 0, 0, 2, 0, 5, 0, 2, 2, 7, 0, 2, 0, 3, 2, 2, 0, 3, 0, 2, 2, 13, 0, 2, 2, 3, 3, 2, 0, 31, 0, 2, 2, 19, 2, 2, 0, 3, 2, 2, 0, 41, 0, 2, 3, 5, 0, 2, 2, 3, 2, 2, 0, 3, 2, 2, 2, 31, 0, 2, 0, 3, 3, 2, 2, 61, 0, 2, 2, 59, 0, 2, 0, 3, 5, 2, 2, 71, 0, 2, 2, 43, 0, 2, 2, 3, 2, 2, 0, 3, 2, 2, 2, 7, 2, 2, 0, 7, 3, 2, 0, 7]

cp's OEIS Frontend

A086134 Smallest prime factor of arithmetic derivative of n or a(n)=0 if no such prime exists.

Table of values

List of values

n	a(n)
0	0
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	2
9	2
10	7
11	0
12	2
13	0
14	3
15	2
16	2
17	0
18	3
19	0
20	2
21	2
22	13
23	0
24	2
25	2
26	3
27	3
28	2
29	0
30	31
31	0
32	2
33	2
34	19
35	2
36	2
37	0
38	3
39	2
40	2
41	0
42	41
43	0
44	2
45	3
46	5
47	0
48	2
49	2
50	3
51	2
52	2
53	0
54	3
55	2
56	2
57	2
58	31
59	0
60	2
61	0
62	3
63	3
64	2
65	2
66	61
67	0
68	2
69	2
70	59
71	0
72	2
73	0
74	3
75	5
76	2
77	2
78	71
79	0
80	2
81	2
82	43
83	0
84	2
85	2
86	3
87	2
88	2
89	0
90	3
91	2
92	2
93	2
94	7
95	2
96	2
97	0
98	7
99	3
100	2
101	0
102	7

n	a(n)
0	0
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	2
9	2
10	7
11	0
12	2
13	0
14	3
15	2
16	2
17	0
18	3
19	0
20	2
21	2
22	13
23	0
24	2
25	2
26	3
27	3
28	2
29	0
30	31
31	0
32	2
33	2
34	19
35	2
36	2
37	0
38	3
39	2
40	2
41	0
42	41
43	0
44	2
45	3
46	5
47	0
48	2
49	2
50	3
51	2
52	2
53	0
54	3
55	2
56	2
57	2
58	31
59	0
60	2
61	0
62	3
63	3
64	2
65	2
66	61
67	0
68	2
69	2
70	59
71	0
72	2
73	0
74	3
75	5
76	2
77	2
78	71
79	0
80	2
81	2
82	43
83	0
84	2
85	2
86	3
87	2
88	2
89	0
90	3
91	2
92	2
93	2
94	7
95	2
96	2
97	0
98	7
99	3
100	2
101	0
102	7

n	a(n)
0	0
1	0
2	0
3	0
4	2
5	0
6	5
7	0
8	2
9	2
10	7
11	0
12	2
13	0
14	3
15	2
16	2
17	0
18	3
19	0
20	2
21	2
22	13
23	0
24	2
25	2
26	3
27	3
28	2
29	0
30	31
31	0
32	2
33	2
34	19
35	2
36	2
37	0
38	3
39	2
40	2
41	0
42	41
43	0
44	2
45	3
46	5
47	0
48	2
49	2
50	3
51	2
52	2
53	0
54	3
55	2
56	2
57	2
58	31
59	0
60	2
61	0
62	3
63	3
64	2
65	2
66	61
67	0
68	2
69	2
70	59
71	0
72	2
73	0
74	3
75	5
76	2
77	2
78	71
79	0
80	2
81	2
82	43
83	0
84	2
85	2
86	3
87	2
88	2
89	0
90	3
91	2
92	2
93	2
94	7
95	2
96	2
97	0
98	7
99	3
100	2
101	0
102	7