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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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Subject
Author
Date
re: Analytic solution
Steve Herman
2020-06-04 17:22:28
Analytic solution
Jer
2020-06-04 12:56:02
Solution
Larry
2020-06-03 10:45:35
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