Question

Please solve question no 3.

Answer 1

Hey!!!

__________

By Prime Factorisation Method

(i) 180

=> 180 = 2² x 3² x 5

Here 5 appears only once
=> 5 is the required number

(ii) 1575

=> 1575 = 5² x 3² x 7

Here 7 appears once
=> 7 is the required number

(iii) 6912

=> 6912 = 3² x 3 x 16²

Here 3 appears once
=> 3 is the required number

(iv) 19200

=> 19200 = 3 x 8² x 10²

Here 3 appears once
=> 3 is the required number

___________

Hope this helps you

Answer 2

1) 5
2) 7
3) 3
4) 3



hope u understand