A097326 - cp's OEIS frontend

A097326 Largest integer m such that m*n has the same decimal digit length as n.

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

[9, 4, 3, 2, 1, 1, 1, 1, 1, 9, 9, 8, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9]

cp's OEIS Frontend

A097326 Largest integer m such that m*n has the same decimal digit length as n.

Table of values

List of values

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

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

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