- #1
MAGICMATHS
- 7
- 0
1. My difficulty is to show that if a is an integer such that 2 does not divide a and 3 does not divide a then 24 does not divide a squared minus 1
2.Is there any equation which helps?
3. My idea is that it has to be an integer such that 6 does not divide a...therefore i have to show that 6a,6a+1,...6a+5 converted to asquared minus 1 are not divisible by 24...pls can anyone suggest if I am solving it correctly.
2.Is there any equation which helps?
3. My idea is that it has to be an integer such that 6 does not divide a...therefore i have to show that 6a,6a+1,...6a+5 converted to asquared minus 1 are not divisible by 24...pls can anyone suggest if I am solving it correctly.