A076649 - cp's OEIS frontend

A076649 Number of digits required to write the prime factors of n.

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	1
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	2
16	4
17	2
18	3
19	2
20	3
21	2
22	3
23	2
24	4
25	2
26	3
27	3
28	3
29	2
30	3
31	2
32	5
33	3
34	3
35	2
36	4
37	2
38	3
39	3
40	4
41	2
42	3
43	2
44	4
45	3
46	3
47	2
48	5
49	2
50	3
51	3
52	4
53	2
54	4
55	3
56	4
57	3
58	3
59	2
60	4
61	2
62	3
63	3
64	6
65	3
66	4
67	2
68	4
69	3
70	3
71	2
72	5
73	2
74	3
75	3
76	4
77	3
78	4
79	2
80	5
81	4
82	3
83	2
84	4
85	3
86	3
87	3
88	5
89	2
90	4
91	3
92	4
93	3
94	3
95	3
96	6
97	2
98	3
99	4
100	4
101	3
102	4
103	3
104	5
105	3
106	3

[0, 1, 1, 2, 1, 2, 1, 3, 2, 2, 2, 3, 2, 2, 2, 4, 2, 3, 2, 3, 2, 3, 2, 4, 2, 3, 3, 3, 2, 3, 2, 5, 3, 3, 2, 4, 2, 3, 3, 4, 2, 3, 2, 4, 3, 3, 2, 5, 2, 3, 3, 4, 2, 4, 3, 4, 3, 3, 2, 4, 2, 3, 3, 6, 3, 4, 2, 4, 3, 3, 2, 5, 2, 3, 3, 4, 3, 4, 2, 5, 4, 3, 2, 4, 3, 3, 3, 5, 2, 4, 3, 4, 3, 3, 3, 6, 2, 3, 4, 4, 3, 4, 3, 5, 3, 3]

cp's OEIS Frontend

A076649 Number of digits required to write the prime factors of n.

Table of values

List of values

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	1
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	2
16	4
17	2
18	3
19	2
20	3
21	2
22	3
23	2
24	4
25	2
26	3
27	3
28	3
29	2
30	3
31	2
32	5
33	3
34	3
35	2
36	4
37	2
38	3
39	3
40	4
41	2
42	3
43	2
44	4
45	3
46	3
47	2
48	5
49	2
50	3
51	3
52	4
53	2
54	4
55	3
56	4
57	3
58	3
59	2
60	4
61	2
62	3
63	3
64	6
65	3
66	4
67	2
68	4
69	3
70	3
71	2
72	5
73	2
74	3
75	3
76	4
77	3
78	4
79	2
80	5
81	4
82	3
83	2
84	4
85	3
86	3
87	3
88	5
89	2
90	4
91	3
92	4
93	3
94	3
95	3
96	6
97	2
98	3
99	4
100	4
101	3
102	4
103	3
104	5
105	3
106	3

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	1
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	2
16	4
17	2
18	3
19	2
20	3
21	2
22	3
23	2
24	4
25	2
26	3
27	3
28	3
29	2
30	3
31	2
32	5
33	3
34	3
35	2
36	4
37	2
38	3
39	3
40	4
41	2
42	3
43	2
44	4
45	3
46	3
47	2
48	5
49	2
50	3
51	3
52	4
53	2
54	4
55	3
56	4
57	3
58	3
59	2
60	4
61	2
62	3
63	3
64	6
65	3
66	4
67	2
68	4
69	3
70	3
71	2
72	5
73	2
74	3
75	3
76	4
77	3
78	4
79	2
80	5
81	4
82	3
83	2
84	4
85	3
86	3
87	3
88	5
89	2
90	4
91	3
92	4
93	3
94	3
95	3
96	6
97	2
98	3
99	4
100	4
101	3
102	4
103	3
104	5
105	3
106	3

n	a(n)
1	0
2	1
3	1
4	2
5	1
6	2
7	1
8	3
9	2
10	2
11	2
12	3
13	2
14	2
15	2
16	4
17	2
18	3
19	2
20	3
21	2
22	3
23	2
24	4
25	2
26	3
27	3
28	3
29	2
30	3
31	2
32	5
33	3
34	3
35	2
36	4
37	2
38	3
39	3
40	4
41	2
42	3
43	2
44	4
45	3
46	3
47	2
48	5
49	2
50	3
51	3
52	4
53	2
54	4
55	3
56	4
57	3
58	3
59	2
60	4
61	2
62	3
63	3
64	6
65	3
66	4
67	2
68	4
69	3
70	3
71	2
72	5
73	2
74	3
75	3
76	4
77	3
78	4
79	2
80	5
81	4
82	3
83	2
84	4
85	3
86	3
87	3
88	5
89	2
90	4
91	3
92	4
93	3
94	3
95	3
96	6
97	2
98	3
99	4
100	4
101	3
102	4
103	3
104	5
105	3
106	3