Let A be the set of prime number smaller than 6 and B be the set of prime factors of 30. Check if A and B are equal.

The number of prime factors of 145 is:

If A is the set of even natural numbers less than 8 and B is the set of prime numbers less than 7, then the number of relations from A to B is :

Write the following sets in the roster form. (i) B is the set of all months in a year having 30 days. (ii) P is the set of all prime numbers smaller than 10. (iii) X is the set of colours of the rainbow.

A is the set of prime number less than 10, B is the set of odd numbers less than 10 and C is the set of even numbers of less than 10. Which of the following statements are true? (i) A subset B (ii) B subset A (iii) A subset C (iv) C subset A (v) B subset C (vi) phi subset A

Express each number as a product of its prime factors: 156

Express each number as a product of its prime factors: 140

Let A be the set of 4 - digit numbers abcd, where a gt b gt c gt d , then n (A) equals :

Express each number as a product of its prime factors: 5005

Express each number as a product of its prime factors: 7429

Express each number as a product of its prime factors: 3825