A073752 - cp's OEIS frontend

A073752 Greatest common divisor of n/spf(n) and n/gpf(n) where spf(n) is the smallest and gpf(n) is the greatest prime factor of n (see A020639, A006530).

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

[1, 1, 1, 2, 1, 1, 1, 4, 3, 1, 1, 2, 1, 1, 1, 8, 1, 3, 1, 2, 1, 1, 1, 4, 5, 1, 9, 2, 1, 3, 1, 16, 1, 1, 1, 6, 1, 1, 1, 4, 1, 3, 1, 2, 3, 1, 1, 8, 7, 5, 1, 2, 1, 9, 1, 4, 1, 1, 1, 6, 1, 1, 3, 32, 1, 3, 1, 2, 1, 5, 1, 12, 1, 1, 5, 2, 1, 3, 1, 8, 27, 1, 1, 6, 1, 1, 1, 4, 1, 9, 1, 2, 1, 1, 1, 16, 1, 7, 3, 10, 1]

cp's OEIS Frontend

A073752 Greatest common divisor of n/spf(n) and n/gpf(n) where spf(n) is the smallest and gpf(n) is the greatest prime factor of n (see A020639, A006530).

Table of values

List of values

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

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

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