A052021 - cp's OEIS frontend

A052021 Sum of digits of n is the largest prime factor of n.

n	a(n)
1	2
2	3
3	5
4	7
5	12
6	50
7	70
8	308
9	320
10	364
11	476
12	500
13	605
14	700
15	704
16	715
17	832
18	935
19	1088
20	1183
21	1547
22	1729
23	2401
24	2584
25	2618
26	2704
27	2926
28	3080
29	3200
30	3536
31	3640
32	3952
33	4225
34	4760
35	4784
36	4913
37	5000
38	5491
39	5525
40	5819
41	5831
42	6050
43	6175
44	6517
45	6647
46	7000
47	7040
48	7150

[2, 3, 5, 7, 12, 50, 70, 308, 320, 364, 476, 500, 605, 700, 704, 715, 832, 935, 1088, 1183, 1547, 1729, 2401, 2584, 2618, 2704, 2926, 3080, 3200, 3536, 3640, 3952, 4225, 4760, 4784, 4913, 5000, 5491, 5525, 5819, 5831, 6050, 6175, 6517, 6647, 7000, 7040, 7150]

cp's OEIS Frontend

A052021 Sum of digits of n is the largest prime factor of n.

Table of values

List of values