The number 2 is 'special' because it is the only Prime number that is even.
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It is the only known even prime number which makes 2 very special.
One thing that is special is that 2 + 2 = 2*2 = 2^2 = 4
No special name.
its the only even number to be a prime number.
Besides being the only even prime number, 2 has many other unique properties as well. Please see the related link below for more information on the number 2.