Question

7. Find the GCD of the given numbers by prime factorisation method:
(1) 24, 45
(2) 180, 252, 324​

Answer 1

HELLO

24,45 ==> 2 2

12,45 ==> 2 2

6,45 ==> 2 2

3,45 ==>3 3

1,15 ==> 3 answer: 3

1,5 ==> 5

1,1 ==> 1 1

180,252,324 ==>2 2 2

90,126,162 ==> 2 2 2

45,63,81 == > 3 3 3

15,21,27 ==> 3 3 3

5,7,9 ==> 3 3 3 answer: 2×2×3=12

5,7,3 ==> 3 3 3

5,7,1 ==> 5 5

1,7,1 ==> 7

1,1,1, ==>

GOOD LUCK

Answer 2

Answer:

The factors of 59 are 1,59

The factors of 97 are 1,97

The common factors of 59 and 97 is 1

∴ They are co-prime.