R. D. Sharma Solutions for Chapter: Playing With Numbers, Exercise 3: EXERCISE

What are prime numbers? List all primes between $1$ and $30.$

Write all prime numbers between $10$ and $50$.

Write all prime numbers between $70$ and $90$.

Write all prime numbers between $40$ and $85$.

Find the possible missing twin for the given number so that they become twin primes:

$29$

Find the possible missing twin for the given number so that they become twin primes:

$101$

The smallest prime number is _____.

The smallest composite number is _____.