A052369 - cp's OEIS frontend

A052369 Largest prime factor of n, where n runs through composite numbers.

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

[2, 3, 2, 3, 5, 3, 7, 5, 2, 3, 5, 7, 11, 3, 5, 13, 3, 7, 5, 2, 11, 17, 7, 3, 19, 13, 5, 7, 11, 5, 23, 3, 7, 5, 17, 13, 3, 11, 7, 19, 29, 5, 31, 7, 2, 13, 11, 17, 23, 7, 3, 37, 5, 19, 11, 13, 5, 3, 41, 7, 17, 43, 29, 11, 5, 13, 23, 31, 47, 19, 3, 7, 11, 5, 17, 13, 7, 53, 3, 11, 37, 7, 19, 23]

cp's OEIS Frontend

A052369 Largest prime factor of n, where n runs through composite numbers.

Table of values

List of values

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

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

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