A227948 - cp's OEIS frontend

A227948 Zeroless numbers n such that n + (product of digits of n) and n - (product of digits of n) are prime.

n	a(n)
1	21
2	23
3	27
4	29
5	81
6	83
7	253
8	293
9	299
10	343
11	347
12	349
13	431
14	437
15	439
16	471
17	473
18	477
19	529
20	623
21	653
22	659
23	677
24	743
25	893
26	1123
27	1219
28	1253
29	1257
30	1297
31	1423
32	1489
33	1521
34	1523
35	1529
36	1587
37	1589
38	1657
39	1763
40	1853
41	1867
42	1927
43	2151
44	2167
45	2239
46	2277
47	2279
48	2321
49	2327
50	2329
51	2377
52	2413
53	2443
54	2459
55	2467
56	2497
57	2543
58	2569

[21, 23, 27, 29, 81, 83, 253, 293, 299, 343, 347, 349, 431, 437, 439, 471, 473, 477, 529, 623, 653, 659, 677, 743, 893, 1123, 1219, 1253, 1257, 1297, 1423, 1489, 1521, 1523, 1529, 1587, 1589, 1657, 1763, 1853, 1867, 1927, 2151, 2167, 2239, 2277, 2279, 2321, 2327, 2329, 2377, 2413, 2443, 2459, 2467, 2497, 2543, 2569]

cp's OEIS Frontend

A227948 Zeroless numbers n such that n + (product of digits of n) and n - (product of digits of n) are prime.

Table of values

List of values