List of top Mathematics Questions on Magnetic Field asked in TS POLYCET

If \( A \) is the set of odd numbers less than 6 and \( B \) is the set of prime factors of 30, then:
If \( A = \{1, 2, 3, 4, 5\} \) and \( B = \{1, 3, 5, 7\} \), then \( n(A \cap B) = \dots \):