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Eight of them (Posted on 2020-06-03)

A 4-digit zeroless number N=ABCD has a certain specific feature:
The last 3 digits of a product ABCD*DCBA are zeros.

List all such numbers, explaining your reasoning.

No Solution Yet Submitted by Ady TZIDON

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re: Analytic solution

Comment 3 of 3 |

(In reply to Analytic solution by Jer)

Bravo, Jer!

Posted by Steve Herman on 2020-06-04 17:22:28

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