8-Jan-1995

Unsolved Problem 2:

Are there an infinite number of twin primes?

A prime number is an integer larger than 1 that has no divisors other than 1 and itself.
Twin primes are two prime numbers that differ by 2. For example, 17 and 19 are twin primes.

Reference:

[Sierpinski 1964]
Waclaw Sierpinski, A Selection of Problems in the Theory of Numbers. Pergamon Press. New York: 1994. Pages 30-31.
Twin Primes Conjecture
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