Question

(1) 16 and 18
Exercise 3.4
1. Find the common factors of
(1) 12 and 15
2. Find the common factors of 24 and 30,
3. Find the common factors of
(1) 6, 15, 18
(1) 10, 15, 25
4. Find the first three common factors of
in 9 and 15
(1) 8 and 12
5. Find all the numbers less than 100 which are multiples of 4 and
6. Which of the following are co-prime
( 15 and 25
(i) 9 and 13?
7. Match the items in Column I with items in Column 1
Column I
Common factors of 6 and 8
(ii) Common factors of 16 and 20
Common multiples of 6 and 9 less than 30 a 20
(iv) Common multiples of 4 and infind all find all the number less than 100 which are multiple of 4 and 5 ​

Answer 1

factors of 12 are 2,3,4,12 and 1

factors of 15 are 1,5,3,15