A116104 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 4.

65, 6653, 9605, 218413, 283720, 996005, 58446925, 99960005, 6086712229, 7385370133, 8478948853, 9999600005, 120178240093, 161171620229, 358247912200, 426843573160, 893417179213, 999996000005, 23376713203604

Offset: 1

Author

Giovanni Resta, Feb 06 2006

Keywords

• nonn
• base

Comments

Duplicate of A115432. See proof at A115432. - Robert Israel, Sep 13 2023

Examples

			9999600005//9999599997 = 9999799999 * 9999800003, where // denotes concatenation.
		

Crossrefs

Cf. A116096, A116103, A116105, A115431, A116235.