Question

Which set of numbers inlcudes all of the prime numbers between 10 and 25?

{12,14,16,18,20}
{11,13,17,19,23}
{11,12,14,15,17}
{12,15,17,21,23}

Answer 1

{11, 13, 17, 19, 23}

Every other set has a composite number.