A repeating number is a number such that the first half of the digits are the same as the second half of the digits. For example, 2020 is a repeating number. What is the smallest repeating number that is also a square?
(In reply to
re(2): Solution by Larry)
I found it interesting that the first 7 numbers were of the form
(9090909090 × N + N)^2 : 4<=N<=10; N is a natural number
Edited on September 9, 2020, 11:42 pm
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Posted by Dej Mar
on 2020-09-09 23:36:20 |
re(3): Solution
