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1. If there are \(1024\) relations from a set \(A = \{1, 2, 3, 4, 5\}\) to a set \(B\), then the number of elements in \(B\) is
 
2. The range of the relation \(R = \{(x, x^2) | x\) is a prime number less than \(13\}\) is
 
3. If \(n(A) = m\) and \(n(B) = n\), the total number of non-empty relations that can be defined between \(A\) to \(B\) is