Vinay Sharma and H K Thakur Solutions for Chapter: Playing With Numbers, Exercise 4: SELF PRACTICE 3.4

Find the common factors of:

$7, 21$ and $35$.

Find first five common multiples of:

$3$ and $5$.

Find first five common multiples of:

$12$ and $18$.

Find first five common multiples of:

$3$ and $9$.

Check whether the numbers are co-prime?
$17$ and $35$

Check whether the numbers are co-prime?
$15$ and $19$

Check whether the numbers are co-prime?
$15$ and $24$

Check whether the numbers are co-prime?
$12$ and $30$