I stand alone, surrounded by others. My value is unique, unlike sisters and brothers. What am I?
Category: Math · Difficulty: hard
Hint: Consider numbers that cannot be divided by anything but themselves.
Answer
A unique prime
Explanation
A unique prime number can only be divided by one and itself, standing apart from composites.
This is a hard math riddle — a tricky one that takes a little thought. The answer is A unique prime.
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