A073646 - cp's OEIS frontend

A073646 Least number formed by concatenating the prime factors of n in base 10.

n	a(n)
1	1
2	2
3	3
4	22
5	5
6	23
7	7
8	222
9	33
10	25
11	11
12	223
13	13
14	27
15	35
16	2222
17	17
18	233
19	19
20	225
21	37
22	112
23	23
24	2223
25	55
26	132
27	333
28	227
29	29
30	235
31	31
32	22222
33	113
34	172
35	57
36	2233
37	37
38	192
39	133
40	2225
41	41
42	237
43	43
44	1122
45	335
46	223
47	47
48	22223
49	77
50	255
51	173
52	1322
53	53
54	2333
55	115
56	2227

[1, 2, 3, 22, 5, 23, 7, 222, 33, 25, 11, 223, 13, 27, 35, 2222, 17, 233, 19, 225, 37, 112, 23, 2223, 55, 132, 333, 227, 29, 235, 31, 22222, 113, 172, 57, 2233, 37, 192, 133, 2225, 41, 237, 43, 1122, 335, 223, 47, 22223, 77, 255, 173, 1322, 53, 2333, 115, 2227]

cp's OEIS Frontend

A073646 Least number formed by concatenating the prime factors of n in base 10.

Table of values

List of values