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Minimum of an expression (Posted on 2023-09-12) Difficulty: 3 of 5
What is the smallest positive value of 36^k-5^l ?

k, l are positive integers.

Credit due: Victors Linis, Ottawa University

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

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re(2): Solution Comment 3 of 3 |
(In reply to re: Solution by Steve Herman)

You're absolutely right -- I originally started with mods 5 and 6 and then added 4 because they hadn't excluded a solution that was 1 mod 30. That did the trick, but I never circled back to check that I still needed all three. Which as you demonstrated, I did not. Thanks for the improvement!
  Posted by Paul on 2023-09-12 19:07:21

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