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.

More Math riddles

All Math riddles · Riddles with answers · Home