Question

Using the prime factorisation method, find which of the following no.are not perfect squares: (I) 768

Answer 1

Answer:

1. 768/2=384
2. 384/2=192
3. 192/2=96
4. 96/2=48
5. 48/2=24
6. 24/2=12
7. 12/2=6
8. 6/2=3. the number have perfect square must be written in the form of 2n into 5n