NCERT Section

Find the common factors of $4, 8$ and $12$.

Find the common factors of $5, 15$ and $25$.

Find the first three common multiples of $6$ and $8$.

Find the first three common multiples of $12$and $18$ .

Write all the numbers less than $100$which are common multiples of $3$and $4$.

If a number is divisible by $9$ and $10$ both, then it must be divisible by $90$.

All numbers which are divisible by $4$ must also be divisible by $8$.

All numbers which are divisible by $8$ must also be divisible by $4$.