A scalene triangle has side lengths which are prime numbers and the  length of its perimeter is also prime. What is its smallest possible  perimeter?
Question:
A scalene triangle has side lengths which are prime numbers and the  length of its perimeter is also prime. What is its smallest possible  perimeter?
Answer:
Let's think step by step.

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A scalene triangle has side lengths which are prime numbers and the  length of its perimeter is also prime. What is its smallest possible  perimeter?
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