Subject Experts Solutions for Chapter: Playing with Numbers, Exercise 2: Exercise 2

What is the largest prime number less than $30$?

What is the sum of $5$ and $2$ less than $100$?

What is the product of smallest prime number and $3$ less than $100$?

What is the sum of prime numbers between $15$ and $20$?

What is the LCM of $70$ and $140?$

What is the HCF of $17$and $51$?

What is the LCM of $7$and $5?$

Find the number of $6$ more than HCF of $11$ and $121$?