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Palindromes' divisibility (Posted on 2019-02-22)

There are n_i 4-digit palindromes divisible by i.

List all n_i values for i =2,3,4,...10,11,12..

P&P only for solving - please.
Verification by software - ok.

See The Solution Submitted by Ady TZIDON

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re: Mentally

Comment 2 of 2 |

(In reply to Mentally by armando)

Only one error found during software verification: there are only 13 4-digit palindromes divisible by 6:

2112

2442

2772

4224

4554

4884

6006

6336

6666

6996

8118

8448

8778

Posted by Charlie on 2019-02-26 09:38:22

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