What is the largest number you can form using each of the digits 1, 2, and 3 exactly once, where the number is divisible by 6?
Category: Math · Difficulty: hard
Hint: Consider the rules for divisibility by 6.
Answer
321
Explanation
A number is divisible by 6 if it is divisible by both 2 and 3. 321 meets these criteria.
This is a hard math riddle — a tricky one that takes a little thought. The answer is 321.
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