A179993 - cp's OEIS frontend

A179993 Numbers m with the property that, when a and b are positive integers such that a*b = m, |a-b| is prime.

n	a(n)
1	3
2	8
3	14
4	18
5	38
6	62
7	98
8	138
9	230
10	258
11	278
12	318
13	338
14	390
15	398
16	402
17	458
18	542
19	678
20	710
21	770
22	798
23	822
24	938
25	1022
26	1118
27	1202
28	1238
29	1298
30	1322
31	1490
32	1622
33	1658
34	2030
35	2222
36	2238
37	2378
38	2438
39	2522
40	2558
41	2618
42	2858
43	2910
44	3002
45	3218
46	3230
47	3698
48	4058
49	4178

[3, 8, 14, 18, 38, 62, 98, 138, 230, 258, 278, 318, 338, 390, 398, 402, 458, 542, 678, 710, 770, 798, 822, 938, 1022, 1118, 1202, 1238, 1298, 1322, 1490, 1622, 1658, 2030, 2222, 2238, 2378, 2438, 2522, 2558, 2618, 2858, 2910, 3002, 3218, 3230, 3698, 4058, 4178]

cp's OEIS Frontend

A179993 Numbers m with the property that, when a and b are positive integers such that a*b = m, |a-b| is prime.

Table of values

List of values