2 Answered Questions for the topic math competition prep
Math Competition Prep Number Theory
07/06/19
Find the least natural number such that the number is divisible by 75 and all its digits are 1 or 0 only.
Is there any trick to be able to do this fast?
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07/05/19
How do I solve this problem regarding divisibility from my Math Challenge class?
What remainder does the number 123456789 leave after division by 8? Is there a trick to solving this?
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